CN201133948Y - Pluggable Optical Passive Components - Google Patents

Abstract

The utility model discloses a plug-pull optical passive device that has the advantages of compact packaging, simple structure, small size and rapid use. The input port and the output port adopt the structural component of the connector type and the structural component of the adapter type, which fit the standards in the communication industry; the traditional connecting method is transformed and the integration of the optical input and the optical output is realized. The plug-pull optical passive device comprises an inner optical device, an outer input port component and an outer output port component; the input port component and the outer output port component are adaptable plug-pull components and can be respectively arranged at two ends of the inner optical device. The plug-pull optical passive device can be widely used in the field of optical fiber communication.

Description

Pluggable Optical Passive Components

technical field

The utility model relates to a plug-in optical passive device used in the field of optical communication.

Background technique

In the field of optical fiber communication, traditional optical passive devices basically use the optical passive device itself to lead out the optical fiber in terms of the use method and installation method, and then add a connector or use optical fiber fusion to connect with other optical passive devices or optical fibers. Communication system connection. However, traditional optical passive devices have the following shortcomings:

(1) During the use of the optical fiber led by the optical passive device itself, it is easy to cause damage to the appearance of the optical fiber and break the optical fiber;

(2) The optical fiber led out by the optical passive device itself needs to be wound and protected during use, which increases the space and system cost required by the system design;

(3) The use and installation of optical fiber fusion splicing for optical passive components requires special splicing equipment, which is inconvenient to operate and high in cost; in addition, protective sleeves are required to protect the splicing points, which reduces reliability;

(4) The optical fiber led out from the passive optical device itself is used to add the use method and installation method of the connector, and the cost of the connector is high.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a pluggable optical passive device with compact packaging, simple structure, small volume and convenient use.

The technical scheme adopted by the utility model is: the utility model includes internal optical components, and the plug-in optical passive device also includes an external input port assembly and an output port assembly, and the input port assembly and the output port assembly are Compatible plug-in components are respectively installed at both ends of the internal optical components.

The input port component and the output port component are connector type structural components or adapter type structural components.

The connector type structural component is an SC connector type, an FC connector type, or an ST connector type, and the adapter type structural component is an SC adapter type, an FC adapter type, or an ST adapter type.

The internal optical component is a WDM device with a filter or an isolation device with a crystal combination.

The beneficial effects of the utility model are: since the utility model includes an external input port assembly and an output port assembly, the input port assembly and the output port assembly are compatible plug-in assemblies and are respectively installed on the internal optical unit The two ends of the device have a simple structure, which effectively combines the input and output ports of the optical components into a whole and plug-in connection, which is convenient for use and installation. The connector-type structural components or adapter-type structural components standard in the communication industry have good versatility in use and installation, so the utility model has compact packaging, simple structure, small volume, convenient use and pluggable. Both the input port and the output port adopt connector-type structural components and adapter-type structural components that meet the standards of the communication industry, which changes the traditional connection method and realizes the integration of optical input and output.

Description of drawings

Fig. 1 is a schematic diagram of the explosion structure of Embodiment 1 of the utility model;

Fig. 2 is a schematic diagram of the assembly structure of Embodiment 1 of the utility model;

Fig. 3 is a schematic structural view of the SC connector type shell of Embodiment 1 of the present invention;

Fig. 4 is a schematic structural view of the positioning pin of the SC connector type ceramic ferrule in Embodiment 1 of the present utility model;

Fig. 5 is a schematic structural view of a metal tube fixed by a zirconia ceramic ferrule in Embodiment 1 of the present invention;

Fig. 6 is a schematic structural view of a zirconia ceramic ferrule in Embodiment 1 of the present invention;

Fig. 7 is a schematic diagram of a half-section structure of the zirconia ceramic ferrule shown in Fig. 6;

Fig. 8 is a schematic diagram of the explosion structure of the second embodiment of the utility model;

Fig. 9 is a schematic diagram of the assembly structure of the second embodiment of the utility model;

Fig. 10 is a schematic structural view of the overall casing of the second embodiment of the utility model;

Fig. 11 is a structural schematic diagram of the SC adapter type locking assembly of the second embodiment of the utility model;

Fig. 12 is a schematic cross-sectional structure diagram of a zirconia ceramic bushing in Embodiment 2 of the present invention;

Fig. 13 is a schematic view of the side structure of the zirconia ceramic sleeve shown in Fig. 12 .

Detailed ways

Embodiment one:

As shown in Figures 1 to 7, the utility model includes an internal optical component 6, an external input port assembly and an output port assembly, and the input port assembly and the output port assembly are compatible plug-in assemblies and are installed separately At both ends of the internal optical components, the input port assembly and the output port assembly include a first SC connector type housing 1, a first SC connector type ceramic ferrule positioning pin 2, two internal optical components Device packaging tube 3, second SC connector type ceramic ferrule positioning pin 8, second SC connector type shell 9, the internal optical components 6 include four zirconia ceramic ferrules 5, 7 and two zirconia The ceramic ferrule fixes the metal tube 4 and the optical element, wherein two of the zirconia ceramic ferrules 5 replace the traditional glass tube pigtail to realize the traditional pigtail function, and the other two zirconia ceramic ferrules 7 serve as the same The connection and matching of other optical communication passive components, so as to realize the transmission of light.

For the optical element, the traditional glass capillary matched with the optical element is replaced by the zirconia ceramic ferrule 5, 7, so that the zirconia ceramic ferrule 5 and the zirconia ceramic ferrule need to be The core 7 is fixed in the zirconia ceramic ferrule fixing metal tube 4, and the zirconia ceramic ferrule 5, 7 is polished and ground to meet the optical design requirements. Adjust the optical parameters of the processed zirconia ceramic ferrules 5 and 7 and the optical components, and package them with two internal optical component packaging tubes 3 . The two internal optical component packaging tubes 3 are square, and of course they can also be in other shapes such as tubes. The two internal optical component packaging tubes 3 are provided with positioning grooves for fixing the metal tube 4 of the zirconia ceramic ferrule, and are fixed with glue to prevent the optical components from being packaged between the two internal optical components. Displacement occurs in tube 3. Sequentially assemble the first SC connector type ceramic ferrule positioning pin 2 and the second SC connector type ceramic ferrule positioning pin 8 onto the packaged internal optical component packaging tube 3 respectively, and then sequentially Assemble the first SC connector type housing 1 and the second SC connector type housing 9 to the first SC connector type ceramic ferrule positioning pin 2 and the second SC connector type ceramic ferrule Positioning pin 8. Finally, use a dust cap to protect the end face of the ceramic ferrule of the optical element to prevent pollution.

The above-mentioned input port assembly and output port assembly are connector type structural assemblies, of course, can also be adapter type structural assemblies, and the said connector type structural assemblies are SC connector types, of course, can also be FC connector type or ST connection adapter type, and the adapter type structural component is an SC adapter type, an FC adapter type, or an ST adapter type. The internal optical component 6 can also be a WDM device with a filter or an isolation device with a crystal combination.

Embodiment two:

As shown in Figures 8 to 13, the difference between this embodiment and Embodiment 1 is that the input port assembly and the output port assembly of this embodiment include an integral shell 11, a first SC connector type ceramic plug Core positioning pin 2, two internal optical components packaging tubes 3, zirconia ceramic sleeve 18, SC adapter type locking assembly 19.

The remaining features of this embodiment are the same as those of Embodiment 1.

Adjust the optical parameters of the processed zirconia ceramic ferrules 5 and 7 and the optical components, and package them with two internal optical component packaging tubes 3 . Sequentially assemble the first SC connector type ceramic ferrule positioning pin 2, the zirconia ceramic sleeve 18 and the SC adapter type locking assembly 19 into the assembled internal optical component packaging tube respectively 3, and then assemble the whole assembly on the whole shell 11. Finally, use a dust cap to protect the end face of the ceramic ferrule of the optical element to prevent pollution.

The input port assembly and the output port assembly described in the utility model can be both connector type structural assemblies, or both are adapter type structural assemblies, or one is a connector type structural assembly and the other is an adapter type structural assembly, not limited to the above implementation described in the example.

The utility model has the advantages of compact packaging, simple structure, small volume, convenient use and pluggable, and its input port and output port adopt connector-type structural components and adapter-type structural components conforming to the communication industry standard, which changes the traditional connection mode , realizing the integration of light input and output.

The utility model can be widely used in the field of optical fiber communication.

Claims (4)

1, a kind of plug-in optical passive component, comprise the internal optics components and parts, it is characterized in that: described plug-in optical passive component also comprises outside input port assembly and output port assembly, and described input port assembly and output port assembly are suitable plug-in assembly and the two ends that are installed on described internal optics components and parts respectively.

2, plug-in optical passive component according to claim 1 is characterized in that: described input port assembly and output port assembly are connector type construction package or type of adapter construction package.

3, plug-in optical passive component according to claim 2, it is characterized in that: described connector type construction package is SC connector type or FC connector type or ST connector type, and described type of adapter construction package is SC type of adapter or FC type of adapter or ST type of adapter.

4, plug-in optical passive component according to claim 1 is characterized in that: described internal optics components and parts are the WDM device of band optical filter or the isolating device of band crystal combination.

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