CN211505952U

CN211505952U - Glass ceramic wavelength division multiplexer

Info

Publication number: CN211505952U
Application number: CN202020404427.9U
Authority: CN
Inventors: 金哲一
Original assignee: Kelang Photoelectric Technology Changzhou Co ltd
Current assignee: Kelang Photoelectric Technology Changzhou Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-09-15
Anticipated expiration: 2030-03-26

Abstract

The utility model relates to a glass ceramic wavelength division multiplexer. The utility model provides a simple structure, intensity height, low, the low glass ceramic wavelength division multiplexer of low dielectric loss of thermal expansion coefficient. The utility model comprises a shell, an output optical fiber, two input optical fibers, a collimator, a sleeve and two input signal connecting pipes which are arranged in the shell and are connected in turn, a collector, a second condenser, a first condenser and a filter lens which are arranged in the sleeve in turn, and a transmitter and a collector which are arranged at the right end of the inner side of the sleeve; the emitter and the collector are respectively connected with an input signal connecting pipe extending into the sleeve; the output optical fiber and the input optical fiber are respectively connected with the collimator and the input signal connecting pipe; the second collecting lens and the first collecting lens are both convex lenses, and the shell and the sleeve are made of glass ceramics.

Description

Glass ceramic wavelength division multiplexer

Technical Field

The utility model relates to a glass ceramic wavelength division multiplexer belongs to optical communication technical field.

Background

The wavelength division multiplexing technology is a technology that optical carrier signals (carrying various information) with two or more different wavelengths are converged together at a sending end through a multiplexer and are coupled to the same optical fiber of an optical line for transmission; at the receiving end, the optical carriers of the various wavelengths are separated by a demultiplexer and then further processed by an optical receiver to recover the original signal. This technique of simultaneously transmitting two or more optical signals of different wavelengths in the same optical fiber is called wavelength division multiplexing. The existing wavelength division multiplexer is composed of a glass single-fiber collimator, a filter plate, a glass double-fiber reflection type collimator and an additional glass tube for encapsulation, and because loss is determined by the quality of different glass components, the loss is difficult to control; and because the body property of the glass has the defects of low processing precision, fragility and high thermal expansion coefficient, the problems of high insertion loss, difficult transportation and the like of the glass wavelength division multiplexing device are caused, and the later use is influenced.

Disclosure of Invention

The utility model provides a simple structure, intensity height, thermal expansion coefficient are low, low dielectric loss's glass ceramic wavelength division multiplexer to prior art not enough.

In order to achieve the above object, the utility model provides a following technical scheme: a glass ceramic wavelength division multiplexer comprises a shell, an output optical fiber, two input optical fibers, a collimator, a sleeve and two input signal connecting pipes, wherein the collimator, the sleeve and the two input signal connecting pipes are arranged in the shell and are sequentially connected; the emitter and the collector are respectively connected with an input signal connecting pipe extending into the sleeve; the output optical fiber and the input optical fiber are respectively connected with the collimator and the input signal connecting pipe; the second collecting lens and the first collecting lens are both convex lenses, and the shell and the sleeve are made of glass ceramics.

The left end face and the right end face of the shell are respectively provided with one transverse groove and two transverse grooves, mounting holes are formed in the transverse grooves, the input optical fiber connector and the output optical fiber connector are fixed on the shell through the transverse grooves and the mounting holes, and the input optical fiber connector and the output optical fiber connector are made of glass ceramics.

A base plate is arranged in the bottom of the shell, and the sleeve is connected with the bottom of the shell through the base plate; the backing plate is used for supporting and fixing the sleeve, and damage caused by external impact is avoided.

Mounting plates are arranged on two sides of the shell along the length direction, and mounting position holes are formed in the mounting plates; is convenient for installation.

A sleeve is arranged outside the collimator; the sleeve serves to protect the collimator.

Beneficial effects of the utility model

The utility model discloses a casing, sleeve, output optical fiber splice and the input optical fiber splice of glass ceramic material because glass ceramic has glass and ceramic dual characteristic, and is high than porcelainous intensity, and is strong than glass toughness, and it not only can replace breakable glass material and the ceramic material that the manufacturing process degree of difficulty is high among the current wavelength division multiplexer, can also change current wavelength division multiplexer component and packaging structure. The glass ceramic has the characteristics of low dielectric loss, better matching with quartz optical fiber, easy precision processing and the like. Under the condition of same performance, the utility model discloses compare with the wavelength division multiplexer of glass material and have advantages such as simple structure, thermal expansion coefficient are low, low dielectric loss and hardness height, have solved the problem that current wavelength division multiplexer exists.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a right side view of fig. 1.

Reference numerals: 1-an output fiber; 2-output optical fiber joint; 3-a shell; 4-a sleeve; 5-a collimator; 6-a concentrator; 7-a scaffold; 8-a second condenser lens; 9-a backing plate; 10-a condenser lens I; 11-a sleeve; 12-a filter; 13-a transmitter; 14-a collector;

15-input signal connection pipe; 16-input fiber optic splice; 17-an input fiber; 18-a transverse slot; 19-mounting location holes; and 20, mounting the plate.

Detailed Description

The utility model discloses a casing 3, set up sleeve pipe 4, collimator 5, sleeve 11, two input signal connecting pipes 15 and backing plate 9 in the casing 3, sleeve 11 passes through backing plate 9 to be fixed in casing 3 bottom, and backing plate 9 provides the support protection to sleeve 11, prevents that the heavy object from dropping and producing the damage that strikes and lead to sleeve 11 to casing 3. The left end face and the right end face of the shell 3 are both provided with transverse grooves 18, each transverse groove 18 is internally provided with a mounting hole (not marked in the figure) with the outer diameter corresponding to the size of the input optical fiber connector 16 and the output optical fiber connector 2, two input optical fibers 16 and one output optical fiber connector 2 are respectively fixed in the mounting holes, and two input optical fibers 17 respectively penetrate through the two input optical fiber connectors 16 and are respectively connected with the input signal connecting pipe 15. The housing 3, the sleeve 11, the input optical fiber connector 16 and the output optical fiber connector 2 are all made of glass ceramic materials. Two ends of the sleeve 4 are respectively fixed with the shell 3 and the left end of the sleeve 11, the collimator 5 is arranged in the sleeve 4, and the output optical fiber 1 penetrates through the output optical fiber connector 2 to be connected with the collimator 5. The inside of sleeve 11 has a converging device 6 at the most left end and the corresponding position fixed mounting of 5 collimators, two 8 condensing lenses, one condensing lens 10 and optical filter 12 are installed in proper order on the right side of converging device 6, optical filter 12 is planar lens, one condensing lens 10 and two 8 condensing lenses are all convex lenses, the edge of optical filter 12 is fixed with the inner wall of sleeve 11 through epoxy glue, the edge of one condensing lens 10 and two 8 condensing lenses is all through the inner wall fixed connection of support 7 with sleeve 11. The edges of the filter 12, the first condenser lens 10 and the second condenser lens 8 are respectively fixed by epoxy resin glue and the bracket 7, so that light signals can be prevented from being scattered out through the space between the edges and the inner wall of the sleeve 11. At the rightmost end inside the sleeve 11, an emitter 13 and a collector 14 are provided. Two signal connecting pipes 15 are fixed at the right end of the sleeve 11, and the signal connecting pipes 15 extend into the sleeve 11 and are respectively connected with the emitter 13 and the collector 14. The housing 3 is provided with mounting plates 20 on both sides in the longitudinal direction, and the mounting plates 20 are provided with mounting position holes 19. Utilize mounting hole 19 can with the utility model discloses fix in optical communication's all kinds of equipment.

When the optical fiber connector is used, optical signals are transmitted to the input signal connecting pipe 15 through the input optical fiber 17 in the input optical fiber connector 16, collected and converged in the emitter 13, then transmitted to the optical filter 12 and the first condenser lens 10 through the emitter 13, processed by the optical filter 12 and the first condenser lens 10, reflected part of impurity light returns to the collector 14, and the rest of available optical signals are converged to the position of the condenser 6 through the second condenser lens 8, transmitted out through the collimator 5 and finally transmitted and used by the output optical fiber 1 in the output optical fiber connector 2.

Claims

1. A glass ceramic wavelength division multiplexer is characterized by comprising a shell, output optical fibers, two input optical fibers, a collimator, a sleeve and two input signal connecting pipes, wherein the collimator, the sleeve and the two input signal connecting pipes are arranged in the shell and are sequentially connected; the emitter and the collector are respectively connected with an input signal connecting pipe extending into the sleeve; the output optical fiber and the input optical fiber are respectively connected with the collimator and the input signal connecting pipe; the second collecting lens and the first collecting lens are both convex lenses, and the shell and the sleeve are made of glass ceramics.

2. The glass ceramic wavelength division multiplexer according to claim 1, wherein the left and right end surfaces of the housing are respectively provided with one and two transverse grooves, the transverse grooves are respectively provided with a mounting hole therein, the input optical fiber connector and the output optical fiber connector are fixed to the housing through the transverse grooves and the mounting holes, and the input optical fiber connector and the output optical fiber connector are made of glass ceramic.

3. The glass ceramic wavelength division multiplexer according to claim 2, wherein a shim plate is disposed in the bottom of the housing, and the sleeve is connected to the bottom of the housing through the shim plate.

4. The glass ceramic wavelength division multiplexer according to claim 3, wherein the housing is provided with mounting plates at both sides in a length direction, and mounting position holes are provided at the mounting plates.

5. The glass-ceramic wavelength division multiplexer according to claim 1, wherein the collimator is externally provided with a sleeve.