CN210927880U

CN210927880U - Optical switch

Info

Publication number: CN210927880U
Application number: CN202020187451.1U
Authority: CN
Inventors: 邢露文; 赵一晶; 邢建昌
Original assignee: Shandong Quanxun Intelligent Technology Co ltd
Current assignee: Shandong Quanxun Intelligent Technology Co ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-07-03
Anticipated expiration: 2030-02-20

Abstract

The utility model belongs to the technical field of optical switches, and discloses an optical switch, which is provided with an optical switch shell, wherein a central control unit is fixedly arranged in the optical switch shell, an NXM reflector array is fixedly arranged in the middle of the optical switch shell, and the central control unit is connected with a NXM reflector array through a control line; the rear end of the optical switch shell is provided with NXM optical fiber arrays A and NXM optical fiber arrays B. The utility model discloses the structure is simple relatively, and along with the increase of switched network capacity, device quantity presents linear increase, and insertion loss and exchange time are stable basically moreover, and the cost also is linear change, easily extensive deployment.

Description

Optical switch

Technical Field

The utility model belongs to the technical field of the optical switch, especially, relate to an optical switch.

Background

Currently, the closest prior art: with the continuous extension of social development and economic life, the range of information exchange and data transmission is larger and longer, and the distance is longer and longer. Optical fibers are becoming increasingly popular in information exchange and data transmission networks due to their large transmission capacity, low propagation loss and fast transmission speed. The laying capacity of optical cables is increased year by year, and the demand on optical switches is increasing. The traditional optical switching mechanism is formed by utilizing photoelectric-to-electric optical conversion or optical switching devices and a multiplexer cascade or MEMS system, the number of the devices is increased in a geometric progression along with the increase of the switching capacity, for example, a 16X16 optical switch network only needs 72 2X2 optical switches to form an 8-row and 9-column 2X2 optical switch array; a 256X256 optical switch network needs 3456 2X2 optical switches to form a 128 row 27 column 2X2 optical switch array, the capacity is only increased by 16 times, the number of devices is increased by 48 times, the transmission path is increased by 3 times, and the loss is also increased by 3 times, so the complexity and the insertion loss are also increased sharply, the switching time is increased linearly, the production cost is also increased by 48 times rapidly, and the 3D MEMS and other core technologies are monopolized by foreign companies.

In summary, the problems of the prior art are as follows: the traditional optical exchange mechanism is composed of an optical-electrical-optical conversion or optical switch device and a wave combiner cascade or MEMS system, the number of devices is increased in a geometric series along with the increase of exchange capacity, the complexity and insertion loss are increased rapidly, the exchange time is increased linearly, the production cost is increased rapidly, and therefore large-scale use is difficult, and the core technologies such as 3D MEMS are monopolized by foreign companies.

The utility model discloses an advantage and positive effect do: the optical switch of the scheme has a relatively simple structure, the number of devices is linearly increased along with the increase of the capacity of a switching network, and the switch of 16X16 just needs one 4X4 reflector array of 16 reflectors, which is one fourth of the traditional switch; the 256X256 switch only needs one 16X16 reflector array 256 reflectors, which is one fourteen of the traditional switch, and is only increased by 16 times compared with the 16X16 switch, the capacity is increased by 16 times, the devices are also increased by 16 times, and the same ratio is linearly increased, and because the planar reflector array is adopted, the free space transmission path is short and basically unchanged, so that the insertion loss is small, the switching time is basically stable, the cost is linearly changed, and the large-scale deployment is easy.

Disclosure of Invention

To the problem that prior art exists, the utility model provides an optical switch.

The utility model is realized by arranging an optical switch shell, wherein a central control unit is fixedly arranged in the optical switch shell, an NXM reflector array is fixedly arranged in the middle of the optical switch shell, and the central control unit is connected with a NXM reflector array through a control line;

the rear end of the optical switch shell is provided with NXM optical fiber arrays A and NXM optical fiber arrays B.

Further, the angle between NXM fiber array A and NXM fiber array B is 90 degrees to 180 degrees.

Further, the number of input fibers in the NXM fiber array A and NXM fiber array B is equal to the number of mirrors in the NXM mirror array.

Further, the NXM fiber array A and NXM fiber array B each have a corresponding flat mirror mounted on the input fibers.

Further, the plane mirror is provided with a horizontal adjustment shaft and a vertical adjustment shaft.

To sum up, the utility model discloses an advantage and positive effect do: the optical switch has a relatively simple structure, the number of devices is linearly increased along with the increase of the capacity of a switching network, and a planar mirror array is adopted, so that the free space transmission path is short, the insertion loss is small, the switching time is basically stable, the cost is linearly changed, and the optical switch is easy to deploy in a large scale.

Drawings

Fig. 1 is a schematic diagram of an internal structure of an optical switch according to an embodiment of the present invention.

In the figure: 1. a central control unit; 2. NXM mirror array; 3. an optical switch housing; 4. NXM optical fiber array A; 5. NXM fiber array B.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

To solve the problems in the prior art, the present invention provides an optical switch, which is described in detail below with reference to the accompanying drawings.

As shown in fig. 1, an optical switch includes an optical switch housing, a central control unit 1 is disposed at a front end of the interior of the optical switch housing, a NXM mirror array 2 is disposed at a middle portion of the interior of the optical switch housing, NXM optical fiber arrays a4 and NXM optical fiber arrays B5 are disposed at a rear end of the interior of the optical switch housing, and NXM optical fiber arrays a4 and NXM optical fiber arrays B5 are disposed at a certain angle to each other.

Preferably, NXM fiber array A4 and NXM fiber array B5 are at an angle of 90 to 180 degrees to each other.

Preferably, the central control unit 1 is connected NXM to the mirror array 2 via control lines.

Preferably, the number of input fibers in the NXM fiber array a4 and the NXM fiber array B5 is equal to the number of mirrors in the NXM mirror array 2.

Preferably, the input fibers of each of the NXM fiber arrays a4 and NXM fiber array B5 are obliquely faced to a plane mirror, the mirrors of each NXM mirror array 2 can independently adjust the reflection angle through horizontal and vertical axes, so that the incident light emitted from any fiber of one NXM fiber array is reflected to any fiber direction of the other NXM fiber array through the mirrors, and the fibers of the incident fiber array receive the incident light, thereby completing the exchange or crossing of the light paths.

The utility model provides a pair of optical switch comprises NXM fiber array A4, NXM fiber array B5 and one NXM speculum array 2 and the central control unit 1 that two become certain angle each other (the contained angle is less than or equal to 90 degrees <180 degrees), and central control unit 1 links to each other with NXM speculum array 2 through the control line, and every speculum in the speculum array can all independently carry out level and two axial angular rotations of vertically. By using the principle of plane reflection, each input optical fiber obliquely faces a plane mirror, and each mirror can independently adjust the reflection angle through a horizontal axis and a vertical axis, so that incident light emitted from any optical fiber of one NXM optical fiber array A4 is reflected to any optical fiber direction of another NXM optical fiber array B5 through the mirror, and the optical fibers of the incident optical fiber array receive the incident light, thereby completing the exchange or crossing of optical paths.

The working principle part is as follows: by using the principle of plane reflection, each input optical fiber of the NXM optical fiber array A4 is obliquely opposite to a plane mirror, and each mirror can independently adjust the inclination angle through a horizontal axis and a vertical axis, so that the reflection angle can be adjusted. Incident light emitted from any optical fiber of one NXM optical fiber array A4 irradiates on a corresponding plane mirror of the plane mirror array 2, the control unit adjusts the inclination angle of the reflecting mirror through a horizontal axis and a vertical axis according to the exchange requirement, further adjusts the incident angle and the reflection angle of the light, enables the reflected light to irradiate on any optical fiber corresponding to another NXM optical fiber array B5 (as shown by a dotted line on the figure), and completes the transmission of the incident light from the optical fiber array A4 to the optical fiber array B5, thereby completing the exchange or crossing of the optical paths. Since each mirror in the NXM mirror array 2 can be adjusted independently, NXM-way free optical path switching can be achieved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.

Claims

1. An optical switch is characterized in that the optical switch is provided with an optical switch shell, a central control unit is fixedly arranged in the optical switch shell, an NXM reflector array is fixedly arranged in the middle of the optical switch shell, and the central control unit is connected with a NXM reflector array through a control line;

2. The optical switch of claim 1, wherein the angle between NXM fiber array a and NXM fiber array B is 90 degrees to 180 degrees.

3. The optical switch of claim 1, wherein the number of input fibers in NXM fiber array a and NXM fiber array B and the number of mirrors in the NXM mirror array are equal.

4. The optical switch of claim 1, wherein input fibers in both NXM fiber array a and NXM fiber array B are mounted with corresponding plane mirrors.

5. The optical switch of claim 4, wherein the plane mirror is mounted with a horizontal adjustment axis and a vertical adjustment axis.