CN204269864U - A kind of array light switch - Google Patents

Abstract

The utility model discloses a kind of array light switch, it is characterized in that, comprise one group of 2N root output optical fibre head array, one group of 2N or N root input optical fibre head array, two groups of 2N lens arras, N number of prisms realizing light path translation, a relay and a drive table; Described output optical fibre head array, the bonding composition of input optical fibre head array respectively with 2 groups of lens arras 2 groups of collimator arrays, described prism is fixed in drive table, and described drive table moves in the light path of 2 groups of collimator arrays by Control; The input light of input optical fibre head array is through lens forming collimate in parallel light, then after prism 2 refractions, scioptics are coupled into corresponding output optical fibre head array.The beneficial effects of the utility model are: cost is low, are easy to realize, and are convenient to promote and commercialization.

Description

A kind of array light switch

Technical field

The utility model relates to optical communication field, particularly relates to a kind of 1x2,2x2 array light switch.

Background technology

Photoswitch can be divided into mechanical type and the large class of non-mechanical two.In current mechanical type array light switch, major part adopts the mode of individual beam switches device array, and this mode volume is large, and cost is high, easily occurs switching bad situation, is difficult to the requirement of the optical communication system of satisfied present develop rapidly.

Summary of the invention

The utility model provides a kind of mechanical array light switch, and volume is little, cost is low, be easy to realization, is convenient to promote and commercialization.

The utility model realizes by the following technical solutions: a kind of array light switch, it is characterized in that, comprise one group of 2N root output optical fibre head array, one group of 2N or N root input optical fibre head array, two groups of 2N lens arras, N number of prisms realizing light path translation, a relay and a drive table; Described output optical fibre head array, the bonding composition of input optical fibre head array respectively with 2 groups of lens arras 2 groups of collimator arrays, described prism is fixed in drive table, and described drive table moves in the light path of 2 groups of collimator arrays by Control; The input light of input optical fibre head array is through lens forming collimate in parallel light, then after prism 2 refractions, scioptics are coupled into corresponding output optical fibre head array.

Preferably, described drive table is provided with fulcrum, the two ends of drive table is moved up and down by fulcrum, and drives prism to move in and out light path, realize the switching of light path.

Further, there is twice refraction, with identical direction outgoing prism after translation one segment distance in the incident translation prism of collimated light in translation prism.

Further, described prism is hexagonal prism.

Preferably, described collimator array and a pillar form globe joint and are connected, and the other end of pillar connects the housing of drive table.

The beneficial effects of the utility model are: cost is low, are easy to realize, and are convenient to promote and commercialization.

Accompanying drawing explanation

Fig. 1 is the principle schematic of 2x2 array light switch of the present utility model;

Fig. 2 is the principle schematic of 1x2 array light switch of the present utility model;

Fig. 3 is the schematic diagram of translation prism of the present utility model;

Fig. 4 is structural representation of the present utility model;

201(301,402), relay drawing reference numeral illustrates:; 204(205,306,307,308,309), prism array; 202(302), input optical fibre head array; 203(303), output optical fibre head array; 206(207,304,306,405), lens arra; 208 (310), drive table; 401, prism array; 403, housing; 404, optical fiber head array; 406, pillar.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

The utility model provides a kind of volume little, 1 × 2,2 × 2 mechanical type array light switchs that cost is low, adopt optical fiber head array and microlens array to form collimator array, adopt relay to drive translation prism array to realize array 1 × 2,2 × 2 photoswitch, collimator array adopts globe joint to connect.Below for hexagonal prism, be described.

As shown in Figure 1,2 × 2 array light switchs.Adopt 2 groups of 2N root optical fiber head arrays.Its principle is: utilize relay 201 drive lip lens array 204 and 205 to move in and out light path, realize the switching of light path.Specific as follows:

When relay 201 drives the prism array 204 ~ 205 in drive table 208 to move into light path, N in input optical fibre head array 202 forms N bundle collimate in parallel light with the light of optical fiber head COM1 array outgoing through lens arra 206, in prism array 204 ~ 205, after 2 refractions, scioptics array 207 is coupled into the other N of output optical fibre head array 203 with OUT1 in optical fiber head, in like manner, in input optical fibre head array 202, other N follows the light of optical fiber head COM2 array outgoing to be coupled into the other N of output optical fibre head array 203 in the same way with in optical fiber head OUT2;

When relay 201 drive lip lens array 204 ~ 205 shifts out light path, the light of 2N root optical fiber head COM1 and the outgoing of COM2 array in output optical fibre head array 203 forms 2N through lens arra 206 and restraints collimate in parallel light, and scioptics array 207 is coupled into the 2N of output optical fibre head array 203 with in optical fiber head OUT2 and OUT1.

Above, array of photoswitch realizes two kinds of switchings:

When 1, moving into light path, COM1->OUT1, COM2->OUT2

When 2, shifting out light path, COM1->OUT2, COM2->OUT1

As shown in Figure 2,1 × 2 array light switch, adopts one group of 2N root output optical fibre head array and one group of N root input optical fibre head array.Principle is specific as follows:

When relay 301 drive lip lens array 306 ~ 309 moves in light path, in input optical fibre head array 302, N forms N bundle collimate in parallel light with the light of optical fiber head COM1 array outgoing through lens arra 304, and in prism array 306 ~ 309, after 2 refractions, scioptics array 305 is coupled into the other N of output optical fibre head array 303 with OUT1 in optical fiber head;

When relay 301 drive lip lens array 306 ~ 309 shifts out light path, in input optical fibre head array 302, N forms N bundle collimate in parallel light with the light of optical fiber head COM1 array outgoing through lens arra 304, then scioptics array 305 is coupled into the other N of output optical fibre head array 303 with in optical fiber head OUT2.

Above, array of photoswitch realizes two kinds of switchings:

When 1, moving into light path, COM1->OUT1;

When 2, shifting out light path, COM1->OUT2

Translation prism in the present embodiment adopts hexagonal prism, the method of its refraction realizes the symmetrical translation of light path, as shown in Figure 3: hexagonal prism can simultaneously oppositely translation two-beam, two-beam is respectively from S1, S3 face entrance prism, exiting parallel prism after twice refraction occurs for S1, S3 face and S2, S4 face, realize the translation of light path, the distance of two-beam translation is identical.

As shown in Figure 4, globe joint is adopted to connect collimator array.Prism array 401 and relay 402 are arranged in housing 403, and optical fiber head array 404 and lens arra 405 are connected to housing 403 by a pillar 406, and pillar 406 can directly be extended by housing or be bonded on object.In process of production array collimator to be carried out in pillar 406 inside debugging as independently device, bonding, form globe joint connected mode, greatly can reduce the complexity of technique and the size of device.

Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.

Claims (5)

1. an array light switch, is characterized in that, comprises one group of 2N root output optical fibre head array, one group of 2N or N root input optical fibre head array, two groups of 2N lens arras, N number of prisms realizing light path translation, a relay and a drive table; Described output optical fibre head array, the bonding composition of input optical fibre head array respectively with 2 groups of lens arras 2 groups of collimator arrays, described prism is fixed in drive table, and described drive table moves in the light path of 2 groups of collimator arrays by Control; The input light of input optical fibre head array is through lens forming collimate in parallel light, then after prism 2 refractions, scioptics are coupled into corresponding output optical fibre head array.

2. a kind of array light switch as claimed in claim 1, is characterized in that, described drive table is provided with fulcrum, the two ends of drive table is moved up and down by fulcrum, and drives prism to move in and out light path, realize the switching of light path.

3. a kind of array light switch as claimed in claim 2, is characterized in that, the incident translation prism of described collimated light, twice refraction occurs in prism, with identical direction outgoing prism after translation one segment distance.

4. a kind of array light switch as claimed in claim 3, is characterized in that, described prism is hexagonal prism.

5. a kind of array light switch as claimed in claim 1, is characterized in that, described collimator array and a pillar form globe joint and be connected, and the other end of pillar connects the housing of drive table.