CN1523791A - Pluggable Optical Transceiver Module - Google Patents

Abstract

A pluggable optical transceiver module includes an optical fiber connection interface, a golden finger connection interface, and an optical transceiver. The optical fiber connection interface is used for connecting an optical fiber to transmit optical signals to other devices; an optical transceiver converting an output electronic signal into an output optical signal to be output through an optical fiber connection interface, and converting an input optical signal into an input electronic signal; the golden finger is connected with the interface and is used for transmitting the output electronic signal and the input electronic signal.

Description

Pluggable Optical Transceiver Module

technical field

The invention relates to a pluggable optical transceiver module, in particular to a pluggable small optical transceiver module for single-channel bidirectional transmission.

Background technique

With the popularization of computers and the rapid development of network technology, the use of the network can quickly obtain information or provide services. Optoelectronic communication can provide fast and large amount of information transmission, therefore, the optoelectronic industry is valued by people from all walks of life and related industries. The optoelectronic industry, which is currently developing rapidly, is an application field that combines electronics (Electronics) and optics (Optics). One of the important key components is the optical transceiver module, which includes an optical transmitter (Transmitter) and an optical receiver (Receiver) or integrates them into an optical transceiver (Transceiver).

The function of the transmitter is to convert the electronic signal into an optical signal for transmission. Generally, it is distinguished according to the light source, and the light source of optical fiber communication is mainly light-emitting diode and laser diode, because the laser diode has high output power, fast transmission speed, small light-emitting angle (indicating that the light source is coupled into the optical fiber with high efficiency) and relatively large frequency spectrum. Narrow (smaller dispersion), so it is more suitable for medium and long distance transmission; as for light-emitting diodes, it is more suitable for short distance transmission because of its low cost and ease of use (simple driving and compensation circuits). Among them, laser diode (Laser Diode) or semiconductor laser (Semiconductor Laser) has the advantages of small size, low power consumption, fast response, impact resistance, long life, high efficiency and low price, and has a wide range of applications in traditional optoelectronic products. widely.

The main function of the optical receiver is to convert the received optical signal into an electronic signal, and the most critical component is the detector. The photodetector utilizes light to irradiate a photodiode (PhotoDiode) to generate enough energy to excite a pair of electron-hole pairs, thereby generating a current signal.

With the extensive use of optical fibers, LANs are also gradually becoming optical fibers. However, the high price of optical communications has always been a major barrier for customers to enter. Therefore, low-cost, easy-to-install, and miniaturized products have become the focus of the development of the LAN market. Small Form Factor (SFF) optical fiber LAN mainly refers to the miniaturization of optical transceivers and optical connectors. The miniaturized optical transceiver has a compact size and is about 50% smaller in volume. The standard small optical transceiver is only 0.5 inches wide, which is the manufacturing standard followed by the current SFF transceiver module. These small transceiver modules allow system designers to fit twice the number of transceivers on the same board compared to their 1-inch-wide predecessors, thereby doubling the density of I/O ports and reducing system cost.

Referring to FIG. 1 , it is a schematic diagram of the appearance and structure of a traditional optical transceiver module. As shown in the figure, the traditional optical transceiver module 100 uses pins (Pin) 110 to connect with the circuit board. Therefore, if it is necessary to replace different types of optical transceiver modules, or when replacing defective optical transceiver modules, it is necessary to open the device casing, and then use welding tools to remove the optical transceiver module and related parts from the circuit board. Not only is it very inconvenient, but also greatly reduces the exchangeability of the optical transceiver module. Therefore, if the interchangeability of optical transceiver modules can be improved, the compatibility of components in the optoelectronic industry can be improved, and the interchangeability of optical transceiver modules can also be effectively improved.

In the above background of the invention, the connection between the optical transceiver module and the circuit board generally adopts the connection interface of pins. Therefore, it is very inconvenient to replace the optical transceiver module. Therefore, if the connection interface between the optical transceiver module and the circuit board can be improved, the interchangeability of the optical transceiver module can be improved, and the compatibility of components in the optoelectronic industry can be improved.

Contents of the invention

Aiming at the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a pluggable optical transceiver module, so as to improve the compatibility and exchangeability of the optical transceiver module, and simplify the process of maintenance and component replacement.

In order to achieve the above object, the present invention provides a pluggable optical transceiver module. The pluggable optical transceiver module includes an optical fiber connection interface, a golden finger connection interface, and an optical transceiver. As for the optical transceiver, only an optical transmitter or an optical receiver may be used. The optical fiber connection interface is used for connecting optical fibers to transmit optical signals to other devices. The optical transmitter converts the output electronic signal into an output optical signal, and outputs it through the optical fiber connection interface. The optical receiver is used to convert the input optical signal into an input electronic signal. The optical transceiver contains the functions of both. The golden finger is connected to the interface to transmit the above-mentioned output electronic signal and input electronic signal to the electronic device using the present invention.

The gold finger connection interface of the present invention can be directly printed on the circuit board in a manner such as a printed circuit. The optical transmitter includes a laser diode (Laser Diode), and the optical receiver includes a photodiode (Photo Diode).

The electronic equipment using the pluggable optical transceiver module of the present invention also includes a corresponding slot with an electronic coupling interface corresponding to the golden finger connection port.

The pluggable optical transceiver module of the present invention can also use a single channel (Single Channel) bidirectional (Bi-direction; BIDI) small (Small Form Factor; SFF) optical transceiver module to improve the single channel bidirectional small optical transceiver module. compatibility.

Therefore, the present invention can effectively improve the compatibility of components of the optical transceiver module, so that the optical transceiver module has good interchangeability and rapid maintenance and update capabilities.

Brief description of the drawings

The technical solutions and beneficial effects of the present invention will be apparent through the detailed description of the preferred embodiments of the present invention below in conjunction with the accompanying drawings.

In the attached picture,

FIG. 1 is a schematic diagram of the appearance structure of an existing optical transceiver module; and

FIG. 2 is a schematic diagram of using the pluggable optical transceiver module of the present invention in an electronic device.

Detailed ways

FIG. 2 is a schematic diagram of using the pluggable optical transceiver module of the present invention in an electronic device. As shown in the figure, the pluggable optical transceiver module 200 of the present invention has an optical fiber connection interface 220 at the front, a gold finger connection interface 210 of the present invention at the rear, and an optical transceiver in the middle, and of course it can also be It is an optical receiver or an optical transmitter to form a pluggable optical receiving module or a pluggable optical transmitting module. By using the golden finger connection interface 210 , the pluggable optical transceiver module 200 of the present invention can be simply, quickly and effectively connected to the slot 250 on the circuit board 260 of an electronic device 270 . And because the pluggable optical transceiver module 200 of the present invention utilizes the gold finger connection interface 210 to connect with the slot 250 on the circuit board 260 . Therefore, for the pluggable optical transceiver module 200 of the present invention, whenever a user wishes to replace an optical transceiver module of a different form, as long as the optical transceiver module to be replaced has the golden finger connection interface 210 of the same design, The user only needs to directly remove the original optical transceiver module from the slot 250, and then insert a new optical transceiver module to complete the replacement of the optical transceiver module. The slot 250 also has a corresponding electronic coupling interface corresponding to the golden finger connection interface 210 . The gold finger connection interface 210 is generally printed on the circuit board directly by using a printed circuit.

That is to say, when using the pluggable optical transceiver module of the present invention, using the gold finger connection interface of the same design specification, whether using any optical transceiver module of different brands, or optical connections of the same brand but different specifications The optical transceiver module of the interface. As long as the electronic connection interfaces of these optical transceiver modules can meet the specifications of the golden finger connection interface of the present invention, then these optical transceiver modules can be used on the same circuit board very easily, and when the optical transceiver modules are damaged, The user can easily pull out the defective optical transceiver module and insert a new optical transceiver module. More importantly, when the appearance size of the optical transceiver module changes to a new specification again, as long as the optical transceiver module of the new specification conforming to the golden finger connection interface of the pluggable optical transceiver module of the present invention is used, that is Can be used immediately on the original circuit board. For the interchangeability of optoelectronic components with ever-changing optical communication specifications, it provides important compatibility. Users can also update the optical transceiver module with new specifications at any time according to their needs, so as to facilitate the transmission of optical signals with other devices.

With the pluggable optical transceiver module of the present invention, the user can replace and update the original optical transceiver module without using any tools, which provides considerable convenience for the exchange of the optical transceiver module. And when the pluggable optical transceiver module of the present invention is used in a single channel (Single Channel) bidirectional (Bi-direction; BIDI) small (Small Form Factor; SFF) optical transceiver module, it can further improve the single channel bidirectional small optical transceiver module. Module compatibility.

The invention effectively improves the interchangeability of the optical transceiver module, and also enhances the compatibility of components of the optical transceiver module, thereby effectively improving the interchangeability of the optical transceiver module.

It can be understood that, for those of ordinary skill in the art, various corresponding changes and modifications can be made according to the technical scheme and technical concept of the present invention, but all these changes and modifications should belong to the appended claims of the present invention scope of protection.

Claims (9)

1, a kind of pluggable optical transceiver module is characterized in that, it comprises at least:

One optical fiber connecting interface is used for connecting an optical fiber, to carry out the transmission of light signal;

One optical signal transceiver device is connected in this optical fiber connecting interface, is used for changing these light signals and electronic signal; And

One golden finger connecting interface is connected in this optical signal transceiver device, to carry out the transmission of these electronic signals.

2, pluggable optical transceiver module according to claim 1 is characterized in that, described golden finger connecting interface is to use the mode of printed circuit to be printed on the circuit board.

According to the described pluggable optical transceiver module of claim I, it is characterized in that 3, described optical signal transceiver device comprises a light signal transmitter.

4, pluggable optical transceiver module according to claim 3 is characterized in that, described light signal transmitter comprises a laser diode.

5, pluggable optical transceiver module according to claim 1 is characterized in that, described optical signal transceiver device comprises an optical signal receiver.

6, pluggable optical transceiver module according to claim 5 is characterized in that, described optical signal receiver comprises a photodiode.

7, pluggable optical transceiver module according to claim 1 is characterized in that, it also comprises a corresponding slot.

8, pluggable optical transceiver module according to claim 7 is characterized in that, described corresponding slot has and the corresponding electronics coupled interface of this golden finger connector.

9, pluggable optical transceiver module according to claim 1 is characterized in that, above-mentioned optical signal transceiver device comprises a single channel bidirectional small light transceiver.

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