CN2857044Y

CN2857044Y - 2X2 modular type light switch

Info

Publication number: CN2857044Y
Application number: CNU200520077624XU
Authority: CN
Inventors: 王健
Original assignee: Photop Technologies Inc
Current assignee: Photop Technologies Inc
Priority date: 2005-11-05
Filing date: 2005-11-05
Publication date: 2007-01-10
Anticipated expiration: 2015-11-05

Abstract

A 2X2 modular type light switch comprises an input end double-optical fiber collimator, a prism, an output end double-optical fiber collimator, and a drive mechanism for making the prism cut in or exit from the light path, wherein the prism is a hexagonal prism capable of refracting translation light, the apex angle of the prism is twice of the incidence angle of the light beam. The prism has four light pass surfaces, wherein the nonadjacent two light pass surfaces are parallel with each other, the incident light can penetrate through two of the light pass surfaces and is totally reflected by the other two light pass surfaces. The utility model has the advantages of small volume, favorable repeatability, long life, convenient to production adjustment, and low cost, and can be widely used in a plurality of aspects, such as optical communication network, optical measuring system, optical sensor system, etc,.

Description

A kind of 2 * 2 assembly type photoswitches

[affiliated technical field]

The utility model relates generally to a kind of 2 * 2 assembly type photoswitches that optical communication system, optical tests system, optical sensor system play the effect of exchange light path that are used for.

[background technology]

Photoswitch is a kind of switching device, and it can be transformed into another loop or path with the signal in optical fiber, integrated optical circuit or other optical waveguides from a loop or path selectively.According to principle of work and material therefor, photoswitch can be divided into mechanical type and on-mechanical formula two big classes, and the utility model relates generally to mechanical optical switch.In some 2 * 2 assembly type photoswitch, use 22 * 2 photoswitch parallel connections to realize (as shown in Figure 1).But there are many shortcomings in 2 * 2 assembly type photoswitches of Gou Chenging like this, mainly are: volume is big, price is high, not easy of integration, does not meet the requirement of modern communication.

[utility model content]

The purpose of this utility model be to provide a kind of high reliability, can 2 * 2 practical assembly type photoswitches.

For achieving the above object, the utility model adopts following structure: a kind of 2 * 2 assembly type photoswitches, comprise input end double-fiber collimator, prism, output terminal double-fiber collimator and make prism incision and the driving mechanism of exit optical, it is characterized in that: described prism is the hexagonal prism of refrangible translation light, wherein the drift angle of hexagonal prism is 2 times of beam incident angle, its logical light face is four faces, non-adjacent two logical light faces are parallel to each other, incident light and wherein two optical surface transmissions, two optical surface total internal reflections in addition.

The input end double-fiber collimator is two, two of output terminal double-fiber collimators.

The input end double-fiber collimator is one, two of output terminal double-fiber collimators.

Described double-fiber collimator adopts GRIN Lens or spherical lens.

The utlity model has that volume is little, good reproducibility, long service life, production debugging be convenient, low cost and other advantages has widespread use in each side such as optical communication network, light measurement system, optical sensor systems.

[description of drawings]

Now in conjunction with the accompanying drawings the utility model is further elaborated:

Fig. 1 is existing 2 * 2 assembly type photoswitch schematic diagrams.

Fig. 2 is the utility model control and structure installation diagram.

Fig. 3 is the utility model 2 * 2 assembly type photoswitch schematic diagrams.

Index path when Fig. 4 is the utility model hexagonal prism exit optical.

Index path when Fig. 5 is the utility model hexagonal prism incision light path.

Fig. 6 is that the utility model comprises two 1 * 2 mechanical optical switch schematic diagrams.

[embodiment]

Among the figure the 1,2,3, the 4th, double-fiber collimator, the 5th, prism, the 6th, driving mechanism, the 7th, shell.

A kind of 2 * 2 assembly type photoswitches of the utility model, comprise two double-fiber collimators 1 of input end and 2 or double-fiber collimator 1 of input end, prism 5, output terminal double-

fiber collimator

3 and 4 and the driving mechanism 6 that makes prism 5 incisions and exit optical, wherein said prism 5 is the hexagonal prism of refrangible translation light, the drift angle of this hexagonal prism is 2 times of beam incident angle, its logical light face is four faces, non-adjacent two logical light faces are parallel to each other, incident light and wherein two optical surface transmissions, two optical surface total internal reflections in addition.

The utility model is work like this: become collimate in parallel light after 4 light beams process double-fiber collimator 1 and double-fiber collimator 2 expand bundle, if there are not hexagonal prism 5 incision light paths, the two-way that light beam is coupled into the two-way of double-fiber collimator 3 and double-fiber collimator 4 is respectively exported its schematic diagram and is seen shown in Figure 4.Under the situation of hexagonal prism 5 incision light paths, produce twice total internal reflection displacement after making the refraction of optical beam, be coupled to the two-way output of the two-way and the double-fiber collimator 3 of double-fiber collimator 4 respectively, its schematic diagram is seen shown in Figure 5.Therefore, hexagonal prism 5 is moved up and down by driving mechanism 6, incision and exit optical, thus reach the purpose that switch exchanges.

Claims

1. assembly type photoswitch, comprise input end double-fiber collimator, prism, output terminal double-fiber collimator and make prism incision and the driving mechanism of exit optical, it is characterized in that: described prism is the hexagonal prism of refrangible translation light, wherein the drift angle of hexagonal prism is 2 times of beam incident angle, its logical light face is four faces, non-adjacent two logical light faces are parallel to each other, incident light and wherein two optical surface transmissions, two optical surface total internal reflections in addition.

2. a kind of 2 * 2 assembly type photoswitches according to claim 1, it is characterized in that: the input end double-fiber collimator is two, two of output terminal double-fiber collimators.

3. a kind of 2 * 2 assembly type photoswitches according to claim 1, it is characterized in that: the input end double-fiber collimator is one, two of output terminal double-fiber collimators.

4. according to claim 1,2 or 3 each described a kind of 2 * 2 assembly type photoswitches, it is characterized in that: described input end double-fiber collimator adopts GRIN Lens or spherical lens.