CN2842455Y

CN2842455Y - 1X2 mechanical light switch

Info

Publication number: CN2842455Y
Application number: CNU2005200776235U
Authority: CN
Inventors: 凌吉武; 吴砺; 王健
Original assignee: Photop Technologies Inc
Current assignee: Photop Technologies Inc
Priority date: 2005-11-05
Filing date: 2005-11-05
Publication date: 2006-11-29
Anticipated expiration: 2015-11-05

Abstract

The utility model relates to a 1*2 mechanical optical switch which comprises a single optical fiber collimator, a prism, a double optical fiber collimator and a driving mechanism which can cause the prism to cut into and retreat from an optical path, wherein the prism is an optical component which can move light beams, light penetration surfaces are quadrangles, two opposite optical surfaces are mutually in parallel or make an included angle and other two optical surfaces also make an included angle. Incident light is transmitted to two of the optical surfaces, and total internal reflection is carried out on other two optical surfaces. The deviation angle by the two-time total internal reflection is identical with the intersection angle of the double optical fiber collimator. The structure of the utility model has the advantages of small volume, good repeatability, long service life, convenient production and debugging, etc. The utility model is extensively used in terms of an optical communication network, an optical measurement system, an optical sensing system, etc.

Description

A kind of 1 * 2 mechanical optical switch

[affiliated technical field]

The utility model relates to a kind of 1 * 2 mechanical optical switch that plays the switching-over light path effect in optical communication system, optical tests system, optical sensor system.

[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.Mechanical optical switch is divided into moving fiber and two kinds of modes of mobile optical element, changes though moving fiber can be realized light path, has shortcomings such as poor repeatability, the rebound shake is big to the light path influence, the life-span is short, Insertion Loss is big; In 1 * 2 mechanical optical switch of some mobile optical elements (as Fig. 1), use refracting prisms and a roof prism, because the processing problems of roof prism makes it to use difficulty with the pairing of double-fiber collimator, and crosstalking in the light path is poor, and be therefore unsatisfactory.

[utility model content]

The purpose of this utility model is to provide 1 * 2 mechanical optical switch of a kind of high reliability, simple structure.

For achieving the above object, the utility model adopts following structure: a kind of 1 * 2 mechanical optical switch, comprise the single fiber collimating apparatus, prism, double-fiber collimator and the driving mechanism that can make prism incision and exit optical, described prism is the optical device of removable light beam, its logical light face is a quadrilateral, two wherein relative optical surfaces are parallel to each other or angle are arranged, between two optical surfaces angle is arranged in addition, incident light and wherein two optical surface transmissions, the angle that is offset is moved in addition two optical surface total internal reflections, its twice total internal reflection and the intersecting angle of double-fiber collimator is the same.

The single fiber collimating apparatus is GRIN Lens or spherical lens.

Double-fiber collimator is GRIN Lens or spherical lens.

Said structure has advantages such as volume is little, good reproducibility, long service life, production debugging convenience, has widely at aspects such as optical communication network, light measurement system, optical sensor systems and uses.

[description of drawings]

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

Fig. 1 is existing 1 * 2 mechanical optical switch schematic diagram.

Fig. 2 is the utility model structure installation diagram.

Fig. 3 is the utility model schematic diagram.

Fig. 4 is the utility model 1 * 2 mechanical optical switch prism index path when moving down.

Fig. 5 is an index path when moving on the utility model 1 * 2 mechanical optical switch prism.

Fig. 6 is the optical path prism figure that the utility model 1 * 2 mechanical optical switch comprises band contract angle.

[embodiment]

Among the figure: single fiber collimating apparatus 1, prism 2, double-fiber collimator 3, driving mechanism 4 and shell 5.

A kind of 1 * 2 mechanical optical switch of the utility model, comprise single fiber collimating apparatus 1, prism 2, double-fiber collimator 3 and can make prism incision and the driving mechanism 4 of exit optical, described prism 2 is the optical device of removable light beam, its logical light face is a quadrilateral, two wherein relative optical surfaces are parallel to each other or angle are arranged, between two optical surfaces angle is arranged in addition, incident light and wherein two optical surface transmissions, the angle that is offset is moved in addition two optical surface total internal reflections, its twice total internal reflection and the intersecting angle of double-fiber collimator is the same.

The utility model is work like this: light beam is from 1 incident of single fiber collimating apparatus, through being coupled into the port output of double-fiber collimator 3 after prism 2 twice total reflection.By add-driving mechanism 4 moves down the prism of fixing on it 2, light beam directly exported from double-fiber collimator 3 another port.Be the incision and the exit optical of prism 2, beam direction is changed, thereby reach the purpose that switch switches.The present invention has advantages such as volume is little, good reproducibility, long service life, production debugging convenience, has widely at aspects such as optical communication network, light measurement system, optical sensor systems and uses.

Claims

1. mechanical optical switch, comprise single fiber collimating apparatus, prism, double-fiber collimator and can make prism incision and the driving mechanism of exit optical, it is characterized in that: described prism is the optical device of removable light beam, its logical light face is a quadrilateral, two wherein relative optical surfaces are parallel to each other or angle are arranged, between two optical surfaces angle is arranged in addition, incident light and wherein two optical surface transmissions, the angle that is offset is moved in addition two optical surface total internal reflections, its twice total reflection and the intersecting angle of double-fiber collimator is the same.

2. a kind of 1 * 2 mechanical optical switch according to claim 1 is characterized in that: described single fiber collimating apparatus is GRIN Lens or spherical lens.

3. a kind of 1 * 2 mechanical optical switch according to claim 1 is characterized in that: described double-fiber collimator is GRIN Lens or spherical lens.