CN214225489U

CN214225489U - Integrated mechanical optical switch device for realizing reflective compact multiport

Info

Publication number: CN214225489U
Application number: CN202120496390.1U
Authority: CN
Inventors: 叶雪梅; 叶满
Original assignee: Shanghai China Sciences Co ltd; Shanghai Zhongke Chuangxin Communication Equipment Co ltd; SHANGHAI CHINA SCIENCE FIBEROPTIC COMPONENTS CO Ltd
Current assignee: Shanghai China Sciences Co ltd; Shanghai Zhongke Chuangxin Communication Equipment Co ltd; SHANGHAI CHINA SCIENCE FIBEROPTIC COMPONENTS CO Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-09-17
Anticipated expiration: 2031-03-09

Abstract

The utility model relates to an integrated mechanical type photoswitch device of realization reflective compact multiport, including four fiber collimator, prism, speculum, gilding box body, straight arm extension arm, L type signal relay, four fiber collimator, prism, speculum all install in the front end of gilding box body, the prism arrange in the speculum outside, four fiber collimator arrange in the prism outside, straight arm extension arm inside gilding box body, straight arm extension arm and prism are fixed, the speculum is fixed on gilding box body, L type signal relay arrange in the afterbody of gilding box body; the four-fiber collimator is formed by coupling and assembling four fiber pigtails and a lens. Adopted the utility model discloses an integrated mechanical type optical switch device of realization reflective compact multiport improves the whole reliability of device and stability, improves the whole optical property of device. The utility model discloses a small, the integrated level is high, insertion loss is little, the light path switches stably, switch response speed is fast, repeatability is high, the working property is stable.

Description

Integrated mechanical optical switch device for realizing reflective compact multiport

Technical Field

The utility model relates to an optical fiber communication field especially relates to the photoswitch field, specifically indicates an integrated mechanical type photoswitch device who realizes reflective compact multiport.

Background

The mechanical optical switch is an indispensable part in optical fiber communication, and has the function of carrying out physical switching or logical operation on optical signals in an optical transmission line or an integrated optical circuit; the field of optical network system, especially the field of multichannel optical signal monitoring, optical switching connection system, optical fiber debugging and measuring system technology, etc. In the present technology, optical fiber communication has become a core transmission method, and its advantages are high transmission quality, large transmission capacity, fast transmission efficiency, low cost, etc. In the different optical network system of day and night, how had both let photoswitch realize that multichannel light signal switches, control, exchange connection, can make photoswitch little, the stability height of volume simultaneously again, be the utility model discloses the problem that will overcome. The utility model provides an integrated mechanical type photoswitch structure of reflective compact, its is small, the integrated level is high, insertion loss is little, the light path switches stably, switch response speed is fast, repeatability is high, working property is stable. At present, in the mature technology, the optical switch is mainly of a transmission type, two sides of the optical switch are both in transmission coupling by using a dual-fiber collimator, and the optical switch is suitable for a 2 × 2 optical switch with a port (or a single fiber is used, the dual-fiber collimator is in transmission coupling at one side, and the optical switch is suitable for a 1 × 2 optical switch with a port), and optical paths are switched through a prism. The schematic diagram of the optical path is shown in fig. 1. By adopting the structure, the optical switch has the advantages of large volume, large insertion loss, more switching elements, unstable optical path switching, poor repeatability and low integration level. The utility model overcomes shortcoming among the above-mentioned prior art provides a compact, integrated level height, small, the insertion loss is little, the light path switches stably, switch response speed is fast, repeatability is high, the stable integrated mechanical light switch structure of reflective compact of working property, and its light path principle schematic diagram is shown in fig. 2.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming of above-mentioned prior art, providing an integrated mechanical type optical switch device who satisfies that the insertion loss is little, working property is stable, application scope is comparatively extensive realization reflective compact multiport.

In order to achieve the above object, the present invention provides an integrated mechanical optical switch device with reflective compact multiport, comprising:

the integrated mechanical optical switch device for realizing the reflection type compact multiport is mainly characterized by comprising four optical fiber collimators, a prism, a reflector, a gold-plated box body, a straight arm extension arm and an L-shaped signal relay, wherein the four optical fiber collimators, the prism and the reflector are all arranged at the front end of the gold-plated box body, the prism is arranged on the outer side of the reflector, the four optical fiber collimators are arranged on the outer side of the prism, the straight arm extension arm is arranged in the gold-plated box body, the straight arm extension arm and the prism are fixed, the reflector is fixed on the gold-plated box body, and the L-shaped signal relay is arranged at the tail part of the gold-plated box body; the four-optical-fiber collimator is formed by coupling and assembling four optical-fiber pigtails and lenses, a glass tube is sealed inside the four-optical-fiber collimator, a gold-plated tube is sealed outside the four-optical-fiber collimator and is connected with a gold-plated box body, and the gold-plated box body consists of a box body, an inner cover plate and an outer cover plate.

Preferably, the four-fiber pigtail consists of four fiber capillaries and four optical fibers, and the optical fibers are inserted into the fiber capillaries.

Preferably, the diameter of the four-fiber pigtail is

The transverse spacing of the tail fibers is 125um, and the diagonal spacing is 176 um.

Preferably, the polishing angle of the end faces of the four optical fiber pigtails is 8 degrees, the four optical fiber pigtails are plated with 1260-1620 of broadband antireflection film layers, and high-low point connecting lines of the 8-degree end faces are perpendicular to the transverse spacing.

Preferably, the glass tube is 2.78 × 8.5mm, and the gold-plated tube is 3.2 × 12 mm.

Preferably, the gold plating box body has the dimensions of 25 mm in length, 11 mm in width and 8mm in height.

Preferably, the refraction angle of the refraction surface of the prism is 3.77 degrees, the size of the prism is 2.0 multiplied by width multiplied by 0.5mm thick, and 1260-1620 broadband antireflection film layers are plated on both surfaces of the prism.

Preferably, the size of the reflector is 4.0 × width and 1.5mm thick, one surface of the reflector is coated with 1260-1620 broadband antireflection film layer, and the other surface is coated with 1260-1620 nm high reflection film layer.

Preferably, the ports of the four optical fiber collimators in the device are reflective 2 × 2 optical switches, the four optical fiber collimators support the replacement of three optical fiber collimators, and the ports of the three optical fiber collimators are 1 × 2 optical switches, wherein the three optical fiber collimators further comprise three optical fiber pigtails and lenses, the three optical fiber pigtails and the lenses are mounted at the front end of the gold-plated box body, the distance between adjacent holes is 125um, the three optical fiber collimators form a straight line, the end surface of the three optical fiber collimators is polished to have a polishing angle of 8 degrees and is plated with 1260-1620 broadband antireflection film layers, and high-low point connecting lines of 8-degree surfaces of the three optical fiber collimators are parallel to the straight line.

Adopted the utility model discloses an integrated mechanical type optical switch device of realization reflective compact multiport improves the whole reliability of device and stability, improves the whole optical property of device. The utility model discloses a small, the integrated level is high, insertion loss is little, the light path switches stably, switch response speed is fast, repeatability is high, the working property is stable, can be applied to the optical network system field, fields such as in particular to multichannel light signal control, light exchange connected system, optic fibre debugging and measurement system technique.

Drawings

Fig. 1-1 is a schematic diagram of the 1 × 2 and 2 × 2 external structures of a transmission type mechanical optical switch in the prior art.

Fig. 1-2 are schematic diagrams illustrating optical path switching of a 1 × 2 and 2 × 2 transmission type mechanical optical switch in the prior art.

Fig. 2-1 is a schematic diagram of the light path switching using the four-light collimator and passing through the prism according to the present invention.

Fig. 2-2 is a schematic diagram of the optical path switching using the four-light collimator without passing through the prism according to the present invention.

Fig. 2-3 are schematic diagrams of the light path switching using the tri-optic collimator and passing through the prism according to the present invention.

Fig. 2-4 are schematic diagrams of the optical path switching using the tri-optic collimator without passing through the prism according to the present invention.

Fig. 3-1 is an external structural view of the integrated mechanical optical switch device implementing the reflective compact multiport according to the present invention.

Fig. 3-2 is an internal structure diagram of the integrated mechanical optical switch device for realizing the reflective compact multiport according to the present invention.

Fig. 3-3 are structural exploded views of the integrated mechanical optical switch device for realizing reflective compact multiport according to the present invention.

Fig. 4-1 is a structural diagram of a four-fiber pigtail in a first embodiment of the present invention for implementing a reflective compact multiport integrated mechanical optical switching device.

Fig. 4-2 is a structural diagram of a triple optical pigtail in a second embodiment of the present invention for implementing a reflective compact multiport integrated mechanical optical switching device.

Fig. 4-3 are structural diagrams of four optical fiber collimators according to a first embodiment of the present invention for implementing a reflective compact multiport integrated mechanical optical switch device.

Fig. 4-4 are structural diagrams of three optical fiber collimators in a second embodiment of the present invention for implementing a reflective compact multiport integrated mechanical optical switching device.

Fig. 5 is a schematic size diagram of a middle prism of the integrated mechanical optical switch device for realizing the reflective compact multiport according to the present invention.

Fig. 6 is a schematic size diagram of a mirror of the integrated mechanical optical switch device for realizing reflective compact multiport according to the present invention.

Detailed Description

In order to more clearly describe the technical content of the present invention, the following further description is given with reference to specific embodiments.

The utility model discloses an integrated mechanical type photoswitch device of realization reflective compact multiport, including four fiber collimator, prism, speculum, gilding box body, straight arm extension arm, L type signal relay, four fiber collimator, prism, speculum all install in the front end of gilding box body, the prism arrange in the speculum outside, four fiber collimator arrange in the prism outside, straight arm extension arm inside gilding box body, straight arm extension arm and prism fixed, the speculum fix on gilding box body, L type signal relay arrange in the afterbody of gilding box body; the four-optical-fiber collimator is formed by coupling and assembling four optical-fiber pigtails and lenses, a glass tube is sealed inside the four-optical-fiber collimator, a gold-plated tube is sealed outside the four-optical-fiber collimator and is connected with a gold-plated box body, and the gold-plated box body consists of a box body, an inner cover plate and an outer cover plate.

As a preferred embodiment of the present invention, the four optical fiber pigtail comprises four optical fiber capillaries and four optical fibers, and the optical fibers are inserted into the optical fiber capillaries.

As a preferred embodiment of the present invention, the diameter of the four optical fiber pigtails is

As the preferred embodiment of the utility model, four optic fibre pigtail's terminal surface polishing angle be 8 degrees and plate 1260 ~ 1620 broadband antireflection rete, the height of 8 degrees terminal surface is some line and transverse spacing is perpendicular.

As a preferred embodiment of the present invention, the glass tube is 2.78X 8.5mm, and the gold-plated tube is 3.2X 12 mm.

In a preferred embodiment of the present invention, the gold-plating case has a length of 25 mm, a width of 11 mm and a height of 8 mm.

In a preferred embodiment of the present invention, the refraction angle of the refraction surface of the prism is 3.77 degrees, the size of the prism is 2.0 × 0.5mm long and wide, and both surfaces of the prism are coated with 1260 to 1620 wide antireflection coating layers.

As the preferred embodiment of the present invention, the size of the reflector is 4.0 × wide and 1.5mm thick, one surface of the reflector is plated with 1260-1620 broadband antireflection film layer, and the other surface is plated with 1260-1620 nm high reflection film layer.

As a first embodiment of the present invention: the port of four fiber collimators in the device is a reflective 2 x 2 optical switch, the four fiber collimators support to be replaced by three fiber collimators, the ports of the three fiber collimators are 1 x 2 optical switches, the three fiber collimators further comprise three fiber pigtails and lenses, the three fiber pigtails and the lenses are mounted at the front end of the gold-plated box body, the distance between adjacent holes is 125 mu m, the three fiber collimators form a straight line, the end surface polishing angle is 8 degrees, the three fiber collimators are plated with 1260-1620 broadband antireflection film layers, and high-low point connecting lines of the 8-degree surface are parallel to the three straight-line holes.

In the specific embodiment of the present invention, a prism with a special refraction angle corresponding to the adjacent distance between the four-fiber pigtail and the three-fiber pigtail is designed according to the adjacent distance between the four-fiber pigtail and the three-fiber pigtail, and then the light beam is reflected to the other hole of the four-fiber pigtail and the three-fiber pigtail by the reflector; and the integrated function is realized, the four-optical tail fiber can meet the 2 multiplied by 2 function, the three-optical tail fiber can also meet the 1 multiplied by 2 integrated function, and the 2 multiplied by 2 or 1 multiplied by 2 multiport integrated mechanical optical switch is realized. And a lead-free welding process is used, so that the overall stability and reliability of the device are improved.

A phi 1.8mm four-fiber pigtail is provided, the pigtail is adjacent in transverse direction at a distance of 125um, the pigtail is at a diagonal line at a distance of 176um, the end face is polished at an angle of 8 degrees and is coated with 1260-1620 broadband antireflection film layers, and the high-low point connecting line of the 8-degree surface is perpendicular to the transverse distance, as shown in fig. 4-1. The phi 1.8mm four-fiber pigtail consists of a phi 1.8mm four-fiber capillary and four fibers. And a piece of four optical fiber tail fibers with the diameter of 1.8mm and a piece of R1.419 CLENS with the diameter of 1.8mm are coupled and assembled into a four-optical fiber collimator, a 2.78 multiplied by 8.5 glass tube is sealed in the collimator, a 3.2 multiplied by 12mm gold-plated tube is sealed outside the collimator, and the collimator is used for connecting with a gold-plated box body with the length of 25 multiplied by the width of 11 multiplied by the height of 8mm in the next procedure by a lead-free welding process as shown in figure 4-3.

In another embodiment, a straight three-fiber pigtail with a diameter of 1.8mm is used, the distance between adjacent holes is 125um, the end face polishing angle is 8 degrees, 1260-1620 wide-band antireflection film layer is coated, and the high-low point connecting line of the 8-degree surface is parallel to the straight three holes, as shown in fig. 4-2 and 4-4.

A prism with a refraction angle of 3.77 degrees, a length of 2.0 x a width of 2.0 x a thickness of 0.5mm and 1260-1620 broadband antireflection coating layers coated on both sides is shown in FIG. 5.

A reflector with a length of 4.0 × a width of 4.0 × a thickness of 1.5mm is coated with 1260-1620 broadband antireflection film layer on one surface and with a high reflection film layer R > 99.8% @ 1260-1620 nm on the other surface, as shown in FIG. 6.

An extension arm of a straight arm, 15mm long by 3mm wide by 0.3mm thick, as shown in FIG. 3-2.

An L-shaped signal relay is shown in figure 3-2.

A set of gold-plated outer sealing box with the length of 25 multiplied by the width of 11 multiplied by the height of 8mm comprises a box body, an inner cover plate and an outer cover plate, as shown in figures 3-3.

The utility model discloses an integrated mechanical type photoswitch of reflective compact, its is small, the integrated level is high, insertion loss is little, the light path switches stably, switch response speed is fast, repeatability is high, working property is stable. The method can be applied to the field of optical network systems, in particular to the fields of multichannel optical signal monitoring, optical switching connection systems, optical fiber debugging and measuring system technology and the like.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. An integrated mechanical optical switch device for realizing a reflective compact multiport is characterized by comprising four optical fiber collimators, a prism, a reflector, a gold-plated box body, a straight arm extension arm and an L-shaped signal relay, wherein the four optical fiber collimators, the prism and the reflector are all arranged at the front end of the gold-plated box body; the four-optical-fiber collimator is formed by coupling and assembling four optical-fiber pigtails and lenses, a glass tube is sealed inside the four-optical-fiber collimator, a gold-plated tube is sealed outside the four-optical-fiber collimator and is connected with a gold-plated box body, and the gold-plated box body consists of a box body, an inner cover plate and an outer cover plate.

2. The device of claim 1, wherein the four-fiber pigtail comprises four fiber capillaries and four optical fibers, and the optical fibers are inserted into the fiber capillaries.

3. The device of claim 1, wherein the diameter of the four fiber pigtail is 1.8mm, the lateral spacing of the pigtail is 125um, and the diagonal spacing is 176 um.

4. The device according to claim 1, wherein the polishing angle of the end faces of the four fiber pigtails is 8 degrees and is coated with 1260-1620 of broadband antireflection coating, and the high-low point connecting lines of the 8-degree end faces are perpendicular to the transverse spacing.

5. The device of claim 1, wherein the glass tube is 2.78 x 8.5mm and the gold-plated tube is 3.2 x 12 mm.

6. The device of claim 1, wherein the gold-plated box body has dimensions of 25 mm long by 11 mm wide by 8mm high.

7. The device of claim 1, wherein the refraction angle of the refraction surface of the prism is 3.77 degrees, the size of the prism is 2.0 length by 2.0 width by 0.5mm thickness, and both surfaces of the prism are coated with 1260-1620 broadband antireflection coating.

8. The device as claimed in claim 1, wherein the size of the reflector is 4.0 × 1.5mm, one surface of the reflector is coated with 1260-1620 wide-band anti-reflection film layer, and the other surface is coated with 1260-1620 nm high-reflection film layer.

9. The device of claim 1, wherein the ports of the four fiber collimators in the device are reflective 2 x 2 optical switches, the four fiber collimators support three fiber collimators, and the ports of the three fiber collimators are 1 x 2 optical switches, wherein the three fiber collimators further comprise three fiber pigtails and lenses, the three fiber pigtails are mounted at the front end of the gold-plated box body, the distance between adjacent holes is 125um, the three fiber collimators are in a straight shape, the end surface polishing angle is 8 degrees, the two fiber pigtails are coated with 1260-1620 broadband antireflection film layers, and the high-low point connecting lines of the 8-degree surface are parallel to the three holes in the straight shape.