CN203563070U - Cfp optical transceiver module - Google Patents
Cfp optical transceiver module Download PDFInfo
- Publication number
- CN203563070U CN203563070U CN201320464845.7U CN201320464845U CN203563070U CN 203563070 U CN203563070 U CN 203563070U CN 201320464845 U CN201320464845 U CN 201320464845U CN 203563070 U CN203563070 U CN 203563070U
- Authority
- CN
- China
- Prior art keywords
- optical
- signal
- light
- many group
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 79
- 239000013307 optical fiber Substances 0.000 claims abstract description 23
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 238000003745 diagnosis Methods 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 3
- 238000000429 assembly Methods 0.000 abstract 3
- 230000010354 integration Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Images
Landscapes
- Optical Communication System (AREA)
Abstract
The utility model discloses a CFP optical transceiver module, comprising a light emission unit, a light reception unit, a control unit, a digital diagnosis unit, a power supply unit, an optical interface unit, and an electrical interface unit. A plurality of light emission assemblies convert electric signals to optical signals and the optical signals are output to a wavelength division multiplexer. The wavelength division multiplexer combines the signals into a path of optical signal, and the optical signal is transmitted to an optical network through an optical isolator. A plurality of groups of light reception assemblies convert the received optical signal to an electric signal, and the electric signal is amplified through a transimpedance and is converted into a voltage signal and is transmitted to an amplitude limiting amplifying circuit and a data and clock recovery circuit, so as to perform data and clock sampling, and acquired data is transmitted to the electrical interface unit to output. An optical integration scheme is used in the module to combine waves and divide waves, reducing winding and welding of an optical fiber. After the wavelength division multiplexer, the optical isolator is used for the emitted light, achieving anti-reflection requirements of all channels, a plurality of separated optical isolators in the light emission assemblies are not needed, thereby greatly simplifying complexity of light path and structure of the CFP optical transceiver module and reducing product cost.
Description
Technical field
The utility model relates to optical communication field, relates in particular to a kind of CFP optical transceiver module.
Background technology
Data center and commercial network service provider are accelerating to adopt connection and the transmission of 40G/100G, to meet multiple business, as the frequency range increased requirement of the explosion type of the promotions such as video, game, point-to-point (P2P) and social networks on line.At present, 40G/100G CFP optical transceiver module is adopted widely and is disposed, for the transmission of higher frequency range provides the most efficient solution.40G/100G CFP optical transceiver module will meet data communication and carrier class network to superelevation bandwidth requirement, can be applicable to long apart from backhaul in the transmission equipment between data center, as router, switch and optical transmission device etc.During the memory body of himself and digital diagnosis function are allowed to condition at optical fiber communication high speed development, obtained large batch of application.
40G CFP optical transceiver module is ultrahigh speed small-sized encapsulated parallel optical module of new generation, the four road 10Gbps speed transmission rate of 40Gbps is altogether provided, 40,000 million is per second, standard single-mode fiber can transfer to 10km distance, this module utilizes parallel light device coupling technique that 4 traditional tunnel 10,000,000,000 single-links are merged and are encapsulated in single transceiving integrated module, when keeping little encapsulation low-power consumption, having expanded greatly transmission bandwidth, is the nucleus module in high-speed light transmission equipment of future generation.If the 25Gbps that the transmission rate on every road improves, CFP optical transceiver module can provide the transmission rate of 100Gbps.
Single mode and multimode fiber are supported in CFP encapsulation simultaneously, adapt to all kinds of speed, agreement and linkage length, comprise all physical medium that complete in IEEE 802.3ba working group (PMD) interface of being correlated with.For 40GbE, target light interface comprises the 40Gbase-SR4 of 100 meters and the 40Gbase-LR4 of 10 kilometers; 100GbE has three kinds of PMD interfaces, the 100Gbase-SR10 of 100 meters, the 100Gbase-ER4 of the 100Gbase-LR4 of 10 kilometers and 40 kilometers.
40Gb/s CFP optical transceiver module is supported hot plug, will meet data communication and carrier class network to superelevation bandwidth requirement, can be applicable to grow apart from backhaul in the transmission equipment between data center, as router, switch and optical transmission device etc.40Gbit/s system can more effectively be used transmission band, and spectrum efficiency is higher; When the cost of 40Gbit/s system drop to 10Gbit/s system cost below 2.5 times time, just can realize extensive commercialization, thus reduce transmission cost; 1 network element replaces 4 network elements, can reduce OAM cost, complexity and spare part quantity; Can effectively reduce IP number of links, improve the autgmentability of node, improve efficiency and the function of core net.
But, in existing 40Gb/s CFP optical transceiver module, for realizing, close ripple and divide the element of wave energy too many, a large amount of wavelength division multiplexing (WDM) devices that use make the cost of module higher, in addition, also bring the complexity of optical fiber around fibre and fused fiber splice, be unfavorable for producing.In addition, for meeting the requirement of light signal antireflection, in each light emission component and system, close between ripple element optical isolator is all installed, cause module complexity and cost all higher, necessary this is improved.
Summary of the invention
The utility model, in order to overcome above deficiency, has proposed a kind of CFP optical transceiver module.
Technical problem of the present utility model is solved by following technical scheme:
A kind of CFP optical transceiver module, comprise Optical Transmit Unit, light receiving unit, control unit, digital diagnosis unit, power supply unit, UFIU UMSC Fiber Interface Unit and electric interface unit, control unit and Optical Transmit Unit, light receiving unit, electric interface unit connects, described digital diagnosis unit is connected with electric interface unit, provide digital diagnosis signal to telecommunication device, described Optical Transmit Unit comprises many group light emission components, many group laser driver elements, data clock recovery unit, light wavelength division multiplexing and optical isolator, many group laser driver elements and data clock recovery circuit receive the multi-channel electric signal of electric interface unit input, modulate to amplify and process, carry out data clock sampling and caching process simultaneously, the signal of telecommunication is sent into many group light emission components, each light emission component converts the signal of telecommunication of input to light signal and outputs to light wavelength division multiplexing, after light wavelength division multiplexing, a synthetic road light signal is transferred to optical network system through optical isolator, described light receiving unit comprises light Wave decomposing multiplexer, many group optical fiber receive modules, many group photo-detectors, many group amplitude limiting amplifier circuits and data clock recovery circuit, light Wave decomposing multiplexer is divided into multipath light signal by received light signal, transfer to respectively many group optical fiber receive modules, every group of optical fiber receive module is converted into the signal of telecommunication by the light signal of reception, the signal of telecommunication is converted into voltage signal and passes to amplitude limiting amplifier circuit and data clock recovery circuit after amplifying across resistance, carry out data clock sampling and caching process, signal after treatment is sent to electric interface unit output.
In an embodiment of the present utility model, described many group light emission components are that four groups, described many group laser driver elements are that four groups, described many group optical fiber receive modules are four groups, described many group photo-detectors are four groups, described many group amplitude limiting amplifier circuits are four groups, described multi-channel electric signal Wei Si road, described multipath light signal Wei Si road.
In an embodiment of the present utility model, described many group light emission components are that ten groups, described many group laser driver elements are that ten groups, described many group optical fiber receive modules are ten groups, described many group photo-detectors are ten groups, described many group amplitude limiting amplifier circuits are ten groups, described multi-channel electric signal Wei Shi road, described multipath light signal Wei Shi road.
In an embodiment of the present utility model, described Optical Transmit Unit also comprises preemphasis circuit, and the signal of telecommunication is carried out to preemphasis processing, and described light receiving unit also comprises equalizer, and the signal of telecommunication is carried out to equilibrium treatment.
In an embodiment of the present utility model, described light emission component adopts direct modulated laser array, and laser array meets Coarse Wavelength Division Multiplexing wavelength interval.
In an embodiment of the present utility model, described optical fiber receive module adopts PIN type photodetector array, and detector array meets Coarse Wavelength Division Multiplexing wavelength interval.
In an embodiment of the present utility model, described digital diagnosis unit comprises logic control and interface circuit, A/D converter and D/A converter, logic control and interface circuit acquisition and processing module data, and monitor internal storage memory module information and the user profile of logic control and interface circuit.
It is to use eight WDM that traditional CFP optical transceiver module is realized the general way of closing ripple and dividing wave energy, has taken so very large space, has to dwindle PCB board space, and circuit design and heat radiation, electromagnetic interference are all had a great impact.The mutual welding of multiple WDM simultaneously, the also very good processing that is unfavorable for light reflection, and increase optical path loss.We adopt light Integrated Solution to close ripple and partial wave, will realize the synthetic road light signal of utilizing emitted light signal of multichannel (Huo Shi road, Ru Si road) Coarse Wavelength Division Multiplexing by a light wavelength division multiplexing.By a light Wave decomposing multiplexer Jiang Yi road light signal, be divided into the light signal of four tunnel Coarse Wavelength Division Multiplexing simultaneously.This scheme has greatly reduced WDM quantity, has reduced product cost, has reduced the complexity of optical fiber around fibre and fused fiber splice, has optimized Product Process, and it is more convenient to make to produce.
In the measure that reduces return loss, the utility model, by using an optical isolator at utilizing emitted light carrier wave through after light wavelength division multiplexing, is realized the light signal antireflection requirement of all passages.By the optical design to ballistic device inside, this scheme can meet performance index requirement.In many group light emission components of the present utility model, all can not be with optical isolator, thereby the optical isolator of multiple separation of generally using in Optical Transmit Unit part is deducted, for four road CFP optical transceiver modules, three optical isolators have been saved, for ten road CFP optical transceiver modules, nine optical isolators have been saved, greatly simplified the complexity of CFP optical transceiver module light path and structure, improved the reliability of CFP optical transceiver module simultaneously, and provided cost savings.
The utility model CFP optical transceiver module integrated level is high, stable performance, and possess higher reliability.Inside modules is integrated clock data recovery circuit, has good high frequency debounce characteristic, is conducive to the recovery of synchrodata clock data in transport process.The utility model CFP optical transceiver module is also integrated preemphasis and equalization function, be conducive to improve the front end response of module, thereby increase bandwidth.Light emission component (202) can be used common direct modulated laser array, realizes long Distance Transmission, has greatly reduced the cost of product.In addition, light receiving unit adopts avalanche photodide type detector array, highly sensitive, is also conducive to the long Distance Transmission of signal.
Accompanying drawing explanation
Fig. 1 is the structural representation of the CFP optical transceiver module of embodiment mono-of the present utility model.
Embodiment
Below by concrete execution mode, also by reference to the accompanying drawings the utility model is described in further details.
Embodiment mono-:
A kind of CFP optical transceiver module, comprise Optical Transmit Unit (1), light receiving unit (2), control unit (3), digital diagnosis unit (4), power supply unit, UFIU UMSC Fiber Interface Unit (5) and electric interface unit (6), control unit and Optical Transmit Unit, light receiving unit, electric interface unit connects, described digital diagnosis unit is connected with electric interface unit, provide digital diagnosis signal to telecommunication device, described Optical Transmit Unit (2) comprises four groups of light emission components (TOSA), four groups of laser driver element (LD, Laser Driver), preemphasis circuit, data clock recovery unit (CDR), light wavelength division multiplexing (PLC MUX) and optical isolator (Isolator), four groups of laser driver elements (LD) and data clock recovery circuit (CDR) receive electric interface unit (5) the input Si road signal of telecommunication, modulate and amplify and preemphasis processing, carry out data clock sampling and caching process simultaneously, the signal of telecommunication is sent into four groups of light emission components (TOSA), each light emission component converts the signal of telecommunication of input to light signal and outputs to light wavelength division multiplexing (PLC MUX), after light wavelength division multiplexing, through optical isolator, be transferred to optical network system with a synthetic road light signal, described light receiving unit (2) comprises light Wave decomposing multiplexer (PLC DEMUX), four groups of optical fiber receive modules (ROSA), four groups of amplitude limiting amplifier circuit (LA, Limiting Amplifier), equalizing circuit and data clock recovery circuit (CDR), light Wave decomposing multiplexer (PLC DEMUX) is divided into four road light signals by received light signal, transfer to respectively four groups of optical fiber receive modules (ROSA), every group of optical fiber receive module is converted into the signal of telecommunication by the light signal of reception, the signal of telecommunication is converted into voltage signal and passes to amplitude limiting amplifier circuit (LA) and equalizing circuit after amplifying across resistance, data clock recovery circuit (CDR), carry out data clock sampling and equilibrium, caching process, signal after treatment is sent to electric interface unit output.
The light emission component (TOSA) of the present embodiment adopts direct modulated laser array, and laser array meets the Coarse Wavelength Division Multiplexing wavelength interval of IEEE 802.3ba regulation, and its centre wavelength is respectively: 1271 nm, 1291 nm, 1311 nm and 1331 nm.The optical fiber receive module (ROSA) of the present embodiment adopts avalanche photodide type detector array, detector array meets the Coarse Wavelength Division Multiplexing wavelength interval of IEEE 802.3ba regulation, its centre wavelength is respectively: 1271 nm, 1291 nm, 1311 nm and 1331 nm.
The digital diagnosis unit (DDM) of the present embodiment comprises logic control and interface circuit, A/D converter and D/A converter, logic control and interface circuit acquisition and processing module data, and monitor internal storage memory module information and the user profile of logic control and interface circuit.
Power supply unit comprises power-supply controller of electric, controls the open and close of each functional unit; Described electric interface unit is 148 PIN electric interface units, the interface that modular power source is provided and communicates with external system.
The radiating portion operation principle of the CFP optical transceiver module of the present embodiment is as follows:
The effect of transmitter unit has been the conversion of the signal of telecommunication to light signal, mainly comprises chip of laser and monitor photo-diode chip, globe lens and monomode fiber.Input electrical signal drive laser chip light emitting, light signal by ball-lens coupling in monomode fiber.Globe lens plays the effect of optical focus.Drive circuit for laser is for driving and control laser works.First, the electrical data signal of input module number is received by drive circuit for laser, and is modulated on the drive current of laser, and drive laser is sent the laser with data modulated signal.Drive circuit for laser possesses automated power control (APC) function, the luminous power dorsad of monitor photo-diode chip monitoring laser device chip, and output photoelectric is flowed to signal feedback to automatic power control circuitry, automatic power control circuitry is adjusted the condition of work of laser, so that its Output optical power is stable.
Receiving unit operation principle is as follows:
Receiving unit is generally comprised of optical fiber receive module and main amplifier, and wherein optical fiber receive module is comprised of photo-detector and trans-impedance amplifier.From module, receive the light data-signal of optical interface input module, photo-detector by inside modules is converted to the signal of telecommunication, be input to trans-impedance amplifier and be enlarged into voltage signal, Trans-impedance preamplifier possesses automatic gain control (AGC) function, the signal of telecommunication by a small margin after the conversion of small-power input light is adopted to the multiplication factor of large gain, and adopt the multiplication factor of little gain to the significantly signal after high-power input light conversion, thereby make the electrical signal amplitude fluctuation of its output be significantly smaller than the fluctuating range of input optical signal power.The signal that main amplifier receives after preamplifier amplifies carries out secondary amplification, the electrical data signal number of output module.Like this, the light signal of input module, after above-mentioned opto-electronic conversion and secondary amplification, keeps constant output at the electric data output end of module, can not fluctuate with the size variation of input optical signal.
The radiating portion of the present embodiment and receiving unit all dispose data clock restore funcitons, guarantee synchronous in transmission of photosignal.
Embodiment bis-:
The difference of the present embodiment and embodiment mono-is, the light emission component (TOSA) of the present embodiment is that ten groups, laser driver element (LD) are that ten groups, optical fiber receive module (ROSA) are ten groups, amplitude limiting amplifier circuit (LA) is ten groups, signal of telecommunication Wei Shi road, light signal Wei Shi road.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (7)
1. a CFP optical transceiver module, comprise Optical Transmit Unit, light receiving unit, control unit, digital diagnosis unit, power supply unit, UFIU UMSC Fiber Interface Unit and electric interface unit, control unit and Optical Transmit Unit, light receiving unit, electric interface unit connects, described digital diagnosis unit is connected with electric interface unit, provide digital diagnosis signal to telecommunication device, it is characterized in that, described Optical Transmit Unit comprises many group light emission components, many group laser driver elements, data clock recovery unit, light wavelength division multiplexing and optical isolator, many group laser driver elements and data clock recovery circuit receive the multi-channel electric signal of electric interface unit input, modulate to amplify and process, carry out data clock sampling and caching process simultaneously, the signal of telecommunication is sent into many group light emission components, each light emission component converts the signal of telecommunication of input to light signal and outputs to light wavelength division multiplexing, after light wavelength division multiplexing, a synthetic road light signal is transferred to optical network system through optical isolator, described light receiving unit comprises light Wave decomposing multiplexer, many group optical fiber receive modules, many group photo-detectors, many group amplitude limiting amplifier circuits and data clock recovery circuit, light Wave decomposing multiplexer is divided into multipath light signal by received light signal, transfer to respectively many group optical fiber receive modules, every group of optical fiber receive module is converted into the signal of telecommunication by the light signal of reception, the signal of telecommunication is converted into voltage signal and passes to amplitude limiting amplifier circuit and data clock recovery circuit after amplifying across resistance, carry out data clock sampling and caching process, signal after treatment is sent to electric interface unit output.
2. CFP optical transceiver module according to claim 1, it is characterized in that, described many group light emission components are that four groups, described many group laser driver elements are that four groups, described many group optical fiber receive modules are four groups, described many group photo-detectors are four groups, described many group amplitude limiting amplifier circuits are four groups, described multi-channel electric signal Wei Si road, described multipath light signal Wei Si road.
3. CFP optical transceiver module according to claim 1, it is characterized in that, described many group light emission components are that ten groups, described many group laser driver elements are that ten groups, described many group optical fiber receive modules are ten groups, described many group photo-detectors are ten groups, described many group amplitude limiting amplifier circuits are ten groups, described multi-channel electric signal Wei Shi road, described multipath light signal Wei Shi road.
4. according to the arbitrary described CFP optical transceiver module of claim 1-3, it is characterized in that, described Optical Transmit Unit also comprises preemphasis circuit, and the signal of telecommunication is carried out to preemphasis processing, and described light receiving unit also comprises equalizer, and the signal of telecommunication is carried out to equilibrium treatment.
5. according to the arbitrary described CFP optical transceiver module of claim 1-3, it is characterized in that, described light emission component adopts direct modulated laser array, and laser array meets Coarse Wavelength Division Multiplexing wavelength interval.
6. according to the arbitrary described CFP optical transceiver module of claim 1-3, it is characterized in that, described optical fiber receive module adopts PIN type photodetector array, and detector array meets Coarse Wavelength Division Multiplexing wavelength interval.
7. according to the arbitrary described CFP optical transceiver module of claim 1-3, it is characterized in that, described digital diagnosis unit comprises logic control and interface circuit, A/D converter and D/A converter, logic control and interface circuit acquisition and processing module data, and monitor internal storage memory module information and the user profile of logic control and interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320464845.7U CN203563070U (en) | 2013-08-01 | 2013-08-01 | Cfp optical transceiver module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320464845.7U CN203563070U (en) | 2013-08-01 | 2013-08-01 | Cfp optical transceiver module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203563070U true CN203563070U (en) | 2014-04-23 |
Family
ID=50512764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320464845.7U Expired - Lifetime CN203563070U (en) | 2013-08-01 | 2013-08-01 | Cfp optical transceiver module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203563070U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348553A (en) * | 2013-08-01 | 2015-02-11 | 深圳新飞通光电子技术有限公司 | Cfp optical transceiver module |
| CN105187128A (en) * | 2015-08-31 | 2015-12-23 | 武汉光迅科技股份有限公司 | 100G optical transceiver module with forward error correction function and based on direct modulation laser |
| CN106899352A (en) * | 2017-04-17 | 2017-06-27 | 武汉飞鹏光科技有限公司 | A kind of photoelectric conversion device based on QSFP28 optical modules |
| WO2017107218A1 (en) * | 2015-12-24 | 2017-06-29 | 武汉光迅科技股份有限公司 | 2x100g optical transceiver module |
| CN115173956A (en) * | 2022-07-26 | 2022-10-11 | 烽火通信科技股份有限公司 | Photoelectric detection receiver |
-
2013
- 2013-08-01 CN CN201320464845.7U patent/CN203563070U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348553A (en) * | 2013-08-01 | 2015-02-11 | 深圳新飞通光电子技术有限公司 | Cfp optical transceiver module |
| CN105187128A (en) * | 2015-08-31 | 2015-12-23 | 武汉光迅科技股份有限公司 | 100G optical transceiver module with forward error correction function and based on direct modulation laser |
| WO2017107218A1 (en) * | 2015-12-24 | 2017-06-29 | 武汉光迅科技股份有限公司 | 2x100g optical transceiver module |
| CN106899352A (en) * | 2017-04-17 | 2017-06-27 | 武汉飞鹏光科技有限公司 | A kind of photoelectric conversion device based on QSFP28 optical modules |
| CN115173956A (en) * | 2022-07-26 | 2022-10-11 | 烽火通信科技股份有限公司 | Photoelectric detection receiver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104348553A (en) | Cfp optical transceiver module | |
| CN105323008B (en) | Configuration method and device for optical transceiver module and its working parameters | |
| CN110176960B (en) | Novel single-fiber bidirectional multichannel input optical module | |
| CN114647030B (en) | A silicon-based optoelectronic transceiver integrated chip for PON OLT system | |
| CN203563070U (en) | Cfp optical transceiver module | |
| CN102347802B (en) | 40G 40km CFP optical module | |
| CN102820931A (en) | Optical module of dual-mode optical network unit | |
| CN204906401U (en) | Communication signal transmitting and receiving module is bare apart from QSFP28 to overlength | |
| CN107579781B (en) | Optical signal receiving module and optical signal transmitting/receiving device | |
| CN102833004A (en) | 100G form-factor pluggable (CFP) optical module with transmission distance larger than 40 kilometers | |
| CN203104456U (en) | XFP optical module and optical line terminal signal transmitting equipment | |
| CN202617126U (en) | 10G SFP+ (enhanced 8.5 and 10Gigabit small form factor pluggable module) LR optical module | |
| CN105577285A (en) | Optical module | |
| CN202159163U (en) | Temperature control type low-power-consumption 10G (Gigabit) 80-km SFP+ (Small Form Factor Pluggable Module) optical module | |
| CN211127812U (en) | SFP + optical module with MAC | |
| CN209514144U (en) | Optical module | |
| CN202889352U (en) | Light receiving and transmitting integrated module | |
| Xiang et al. | Research and design of 800Gbit/s PAM4 LR8 10km optical module | |
| CN208508948U (en) | A single-span optical transmission system | |
| CN207968495U (en) | A kind of 100G miniaturization optical modules transmitted at a distance | |
| CN210927635U (en) | 10G SFP +1310nm60KM optical module | |
| CN112448785B (en) | Communication transmission method based on 100G DWDM CFP2 optical module | |
| CN202309719U (en) | 40G and 40km CFP optical module | |
| CN202374405U (en) | Passive optical network (PON) optical module device capable of realizing dual-channel user interface | |
| CN106899352A (en) | A kind of photoelectric conversion device based on QSFP28 optical modules |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |