CN216310328U

CN216310328U - Single-fiber bidirectional component for realizing adjacent 20nm

Info

Publication number: CN216310328U
Application number: CN202122852282.6U
Authority: CN
Inventors: 陈永强; 张才生; 张灼广
Original assignee: Xiamen Beilai Information Technology Co ltd
Current assignee: Xiamen Beilai Information Technology Co ltd
Priority date: 2021-11-21
Filing date: 2021-11-21
Publication date: 2022-04-15
Anticipated expiration: 2031-11-21

Abstract

The utility model discloses a single-fiber bidirectional component for realizing adjacent 20nm, which comprises a component seat, a laser, an isolator, a first filter, a second filter, a 0-degree filter, an optical fiber and a detector, wherein the first filter forms an angle of 13.5 degrees with the vertical direction, the second filter forms an angle of 31.5 degrees with the horizontal direction, the laser is fixedly arranged at an interface at one side of the component seat, the isolator is positioned right in front of the laser, the first filter is arranged in the middle of the component seat through a wave plate seat, the second filter is arranged at one side of the wave plate seat, the 0-degree filter is positioned right above the second filter, the optical fiber is fixedly arranged at an interface at the other side of the component seat, the central line and the isolator are positioned on the same straight line, and the detector is fixedly arranged at an interface at the top of the component seat; the 45-degree filter plates are ingeniously divided into two filters for light transmission and reflection, the single fibers can perfectly realize adjacent 20nm, the structure is simple, the number of parts is small, the whole size is small, the design is ingenious, the cost is low, the failure rate is low, the installation and the assembly are simple and efficient, and the use requirements of products are effectively met.

Description

Single-fiber bidirectional component for realizing adjacent 20nm

Technical Field

The utility model belongs to the field of communication, and particularly relates to an adjacent 20nm single-fiber bidirectional component which is small in size, simple in structure, ingenious in design, low in cost and low in failure rate.

Background

In many optical communication semiconductor products, the single-fiber bidirectional component is widely used, as for the current single-fiber bidirectional component (as shown in fig. 2), a 45-degree filter is adopted, only 40nm adjacent intervals can be packaged, particularly, 20nm adjacent intervals are used in practical use, in order to realize 20nm adjacent intervals, a double-fiber WDM structure (as shown in fig. 3) is needed, the structure realizes 20nm adjacent intervals, but the structure has the defects of large whole volume, high cost and high failure rate of component use, complex structure, troublesome installation and assembly and low efficiency, the use requirement of the product cannot be effectively met, and if one single-fiber bidirectional structure can realize 20nm adjacent intervals, the problems can be solved.

The utility model aims to solve the technical problem of providing an adjacent 20nm single-fiber bidirectional component which has a simple structure, few parts, small integral volume, ingenious design, low cost and low failure rate, is simple and efficient to install and assemble and can effectively meet the use requirement of products.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that the prior art is large in whole volume, multiple in part use, high in cost, high in failure rate, complex in structure, troublesome in installation and assembly, low in efficiency, incapable of effectively meeting the use requirements of products and the like, the utility model adopts the following technical scheme:

the utility model provides a single-fiber bidirectional component for realizing adjacent 20nm, which comprises a component seat, a laser, an isolator, a first filter, a second filter, an optical fiber and a detector, wherein the first filter forms an angle of 13.5 degrees with the vertical direction, the second filter forms an angle of 31.5 degrees with the horizontal direction, the 0-degree filter, the optical fiber and the detector, the laser is fixedly arranged at an interface at one side of the component seat, the isolator is arranged in the component seat and is positioned right in front of the laser, the first filter is arranged in the middle of the component seat through the wave plate seat, the central line of the first filter is positioned on the same line with the isolator, the second filter is arranged on one side of the wave plate seat, the 0-degree filter is arranged in the component seat and is positioned right above the second filter, the optical fiber is fixedly arranged at the interface of the other side of the component seat through the transition block, the central line and the isolator are positioned on the same straight line, and the detector is fixedly arranged at the interface of the top of the component seat and is positioned right above the 0-degree filter.

As an improvement of the utility model, the first filter plate transmits light with the wavelength range of 1565nm to 1590nm and reflects light with the wavelength range of 1540nm to 1555 nm.

As a further improvement of the utility model, the working wavelength range of the second filter is 1540nm to 1555 nm.

As a further improvement of the utility model, the 0 degree filter transmits light in a wavelength range of 1540nm to 1560nm and reflects light in a wavelength range of 1567nm to 1650 nm.

As a further improvement of the utility model, the optical fiber is also sleeved with a leather sheath.

The utility model has the beneficial effects that: the 45-degree filter plates are ingeniously divided into two filters for light transmission and reflection, the single fibers can perfectly realize adjacent 20nm, the structure is simple, the number of parts is small, the whole size is small, the design is ingenious, the cost is low, the failure rate is low, the installation and the assembly are simple and efficient, and the use requirements of products are effectively met.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a conventional single-fiber bidirectional module for realizing adjacent 40 nm.

Fig. 3 is a schematic diagram of a conventional module structure for implementing the adjacency 20.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in figure 1, a single-fiber bidirectional component for realizing adjacent 20nm comprises a component seat 1, a laser 2, an isolator 3, a first filter 4 forming an angle of 13.5 degrees with the vertical direction, a second filter 5 forming an angle of 31.5 degrees with the horizontal direction, a 0-degree filter 6, an optical fiber 7 and a detector 8, wherein the laser 2 is fixedly arranged at an interface at one side of the component seat 1, the isolator 3 is arranged in the component seat 1 and is positioned right ahead of the laser 2, the first filter 4 is arranged in the middle of the component seat 1 through a wave plate seat 41, a central line and the isolator 3 are positioned on the same straight line, the second filter 5 is arranged at one side of the wave plate seat 41, the 0-degree filter 6 is arranged in the component seat 1 and is positioned right above the second filter 5, the optical fiber 7 is fixedly arranged at an interface at the other side of the component seat 1 through a transition block 71, and the central line and the isolator 3 are positioned on the same straight line, the detector 8 is fixedly arranged at the top interface of the component seat 1 and is positioned right above the 0-degree filter 6.

Taking the 1570nm incoming light of the laser as an example, in the reverse direction, the 1570nm emitted light of the laser is transmitted to the optical fiber through the isolator and the first filter, and the 1570nm light is output to the equipment from the optical fiber for use;

from the forward again, follow the light of optical fiber access 1550nm, reflect to the second filter through first filter earlier, light is received by the detector after reflecting to 0 filter through the second filter again, can realize like this that adjacent 20nm single fiber is two-way, simple structure is compact, whole small.

In the utility model, the wavelength range of transmitted light of the first filter 4 is 1565nm to 1590nm, and the reflection wavelength range is 1540nm to 1555 nm.

In the utility model, the working wavelength range of the second filter 5 is 1540nm to 1555 nm.

In the utility model, the 0-degree filter 6 has a transmission wavelength range of 1540nm to 1560nm and a reflection wavelength range of 1567nm to 1650 nm.

In the utility model, the optical fiber 7 is also sleeved with the leather sheath 9, so that the optical fiber can be effectively protected.

However, the traditional single-fiber bidirectional optical fiber can only realize the interval of 40nm, as shown in fig. 2, a 45-degree filter is adopted, and only the double-fiber WDM as shown in fig. 3 can be adopted to realize 20nm, but the structure is complex, the whole volume is large, the use requirement cannot be met, the problems can be solved through the improvement, the improved structure is a breakthrough improved structure, and the design is very ingenious.

The above embodiments are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A single-fiber bidirectional component for realizing adjacent 20nm is characterized in that: including subassembly seat (1), laser instrument (2), isolator (3), be 13.5 first filter (4) at the angle with the vertical direction, be 31.5 second filter (5), 0 filter (6), optic fibre (7) and detector (8) at the angle with the horizontal direction, laser instrument (2) set firmly in subassembly seat (1) one side kneck, isolator (3) set up in subassembly seat (1) and are located laser instrument (2) dead ahead, first filter (4) set up in subassembly seat (1) middle part and central line and isolator (3) are located same straight line through wave piece seat (41), second filter (5) set up in wave piece seat (41) one side, 0 filter (6) set up in subassembly seat (1) and are located second filter (5) dead side, optic fibre (7) set firmly in subassembly seat (1) and are located same straight line kneck (3) opposite side through transition piece (71), and the same straight line kneck is located with isolator (3) to optic fibre (3) other side On, detector (8) set firmly and are located 0 filter (6) directly over at subassembly seat (1) top kneck.

2. A single fiber bidirectional module for realizing adjacent 20nm as claimed in claim 1, wherein: the wavelength range of transmitted light of the first filter (4) is 1565nm to 1590nm, and the reflection wavelength range is 1540nm to 1555 nm.

3. A single fiber bidirectional module for realizing adjacent 20nm as claimed in claim 1, wherein: the working wavelength range of the second filter (5) is 1540nm to 1555 nm.

4. A single fiber bidirectional module for realizing adjacent 20nm as claimed in claim 1, wherein: the 0-degree filter (6) has a transmission light wavelength range of 1540nm to 1560nm and a reflection wavelength range of 1567nm to 1650 nm.

5. A single fiber bidirectional module for realizing adjacent 20nm as claimed in claim 1, wherein: the optical fiber (7) is also sleeved with a leather sheath (9).