CN220650945U

CN220650945U - 8-wavelength optical device of single Z-block module

Info

Publication number: CN220650945U
Application number: CN202322391933.5U
Authority: CN
Inventors: 方文银; 彭开盛
Original assignee: Tri Light Wuhan Electronics Technology Co ltd
Current assignee: Tri Light Wuhan Electronics Technology Co ltd
Priority date: 2023-09-04
Filing date: 2023-09-04
Publication date: 2024-03-22
Anticipated expiration: 2033-09-04

Abstract

The utility model relates to an 8-wavelength optical device of a single Z-block module, which comprises a laser module, a wave combining module, a Z-block module, an optical fiber coupling module and an optical fiber which are sequentially arranged along the direction of an optical path; the laser module emits eight paths of light, each two paths of light are combined into one path of light through a wave combining module, and the four paths of light after combination are parallel to each other; four optical filters are arranged on one surface of the Z-block module, four paths of mutually parallel light respectively enter the Z-block module from each optical filter to be combined into one path of light, and then enter the optical fiber through the optical fiber coupling module. Eight paths of light emitted by the laser module are combined into a group of four paths of parallel light through the four wave combining modules, then the four paths of parallel light are combined into one path of light through the Z-block module, and the eight paths of light only need to share one Z-block module, so that materials are saved, manufacturing procedures are reduced, production cost is reduced, the optical path length is shortened, and the whole space structure is more compact.

Description

8-wavelength optical device of single Z-block module

Technical Field

The utility model relates to the technical field of optical communication equipment, in particular to an 8-wavelength optical device of a single Z-block module.

Background

The mature channel of the current mass production of TFF (Z-block and optical filter combination) is 4 channels; the current 800G optical device and the 1.6T optical device commonly adopt an 8-channel optical scheme, an 8X100G or 8X200G scheme, and the existing 8-channel optical scheme adopts two Z-Block modules, so that the material cost and the production cost are increased, and the volume is larger.

Disclosure of Invention

The utility model aims to provide an 8-wavelength optical device with a single Z-block module so as to overcome the defects in the prior art.

The technical scheme for solving the technical problems is as follows: an 8-wavelength optical device of a single Z-Block module comprises a laser module, a wave combining module, a Z-Block module, an optical fiber coupling module and an optical fiber which are sequentially arranged along the direction of an optical path;

the laser module emits eight paths of light, each two paths of light are combined into one path of light through a wave combining module, and the four paths of light after combination are parallel to each other;

four optical filters are arranged on one surface of the Z-Block module, four paths of mutually parallel light respectively enter the Z-Block module from each optical filter to be combined into one path of light, and then enter the optical fiber through the optical fiber coupling module.

The beneficial effects of the utility model are as follows: eight paths of light emitted by the laser module are combined into a group of four paths of parallel light through the four wave combining modules, then the four paths of parallel light are combined into one path of light through the Z-Blcok module, and the eight paths of light only need to share one Z-Blcok module, so that materials are saved, manufacturing procedures are reduced, production cost is reduced, the optical path length is shortened, and the whole space structure is more compact.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the wave combining module is a prism.

Further, the optical fiber coupling module comprises a converging lens and an optical isolator arranged between the converging lens and the Z-Block module.

Further, the laser module comprises eight pairs of laser chips and collimating lenses, and each two pairs of laser chips and collimating lenses are a group corresponding to one wave combining module.

Further, the laser chip is arranged in the ceramic heat sink.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a laser module; 11. a laser chip; 12. a collimating lens; 13. a ceramic heat sink; 2. a wave combining module; 3. a Z-Block module; 4. an optical fiber coupling module; 41. a converging lens; 42. an optical isolator; 5. an optical fiber; 6. an optical filter.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Embodiment 1, as shown in fig. 1, an 8-wavelength optical device of a single Z-Block module includes a laser module 1, a wave combining module 2, a Z-Block module 3, an optical fiber coupling module 4 and an optical fiber 5 sequentially arranged along an optical path direction;

eight paths of light are emitted by the laser module 1, one path of light is synthesized by each two paths of light through the wave synthesizing module 2, and the four paths of synthesized light are parallel to each other;

four optical filters 6 are arranged on one surface of the Z-Block module 3, four paths of mutually parallel light enter the Z-Block module 3 from each optical filter 6 respectively to be combined into one path of light, and then enter the optical fiber 5 through the optical fiber coupling module 4.

Eight paths of light emitted by the laser module 1 (lambda 1, lambda 2, lambda 3, lambda 5, lambda 6, lambda 7 and lambda 8) are synthesized into a group of four paths of parallel light through the four wave combining modules 2, then the four paths of parallel light are synthesized into one path of light through the Z-Blcok module 3, and the eight paths of light only need to share one Z-Blcok module 3, so that materials are saved, manufacturing procedures are reduced, production cost is reduced, the optical path length is shortened, and the whole space structure is more compact.

Example 2, as shown in fig. 1, this example is a further improvement over example 1, which is specifically as follows:

the wave combining module 2 is a prism.

Example 3, as shown in fig. 1, this example is a further improvement over example 1, which is specifically as follows:

the optical fiber coupling module 4 includes a collective lens 41 and an optical isolator 42 provided between the collective lens 41 and the Z-Block module 3. The optical isolator 42 enables unidirectional transmission of light, avoiding degradation of device performance caused by return of reflected light into the device.

Example 4, as shown in fig. 1, this example is a further improvement over example 1, which is specifically as follows:

the laser module 1 comprises eight pairs of laser chips 11 and collimating lenses 12, and each two pairs of laser chips 11 and collimating lenses 12 are a group of collimating lenses 12 corresponding to one wave combining module 2, so that the divergence of laser beams can be reduced, and the laser beams are more concentrated.

Example 5, as shown in fig. 1, this example is a further improvement over example 4, which is specifically as follows:

and the laser chip 11 is arranged in the ceramic heat sink 13. The heat dissipation effect on the laser chip 11 can be well achieved.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The 8-wavelength optical device of the single Z-Block module is characterized by comprising a laser module (1), a wave combining module (2), a Z-Block module (3), an optical fiber coupling module (4) and an optical fiber (5) which are sequentially arranged along the direction of an optical path;

the laser module (1) emits eight paths of light, each two paths of light are combined into one path of light through one wave combining module (2), and the four paths of light after combination are parallel to each other;

four optical filters (6) are arranged on one surface of the Z-Block module (3), four paths of mutually parallel light enter the Z-Block module (3) from each optical filter (6) respectively to be combined into one path of light, and then enter the optical fiber (5) through the optical fiber coupling module (4).

2. The single Z-block 8-wavelength optical device according to claim 1, wherein the combiner module (2) is a prism.

3. The single Z-Block 8-wavelength optical device according to claim 1, characterized in that the fiber coupling module (4) comprises a converging lens (41) and an optical isolator (42) arranged between the converging lens (41) and the Z-Block module (3).

4. The single Z-block 8-wavelength optical device according to claim 1, wherein the laser module (1) comprises eight pairs of laser chips (11) and collimating lenses (12), and each two pairs of laser chips (11) and collimating lenses (12) are a group corresponding to one of the wave combining modules (2).

5. The single Z-block 8-wavelength optical device of claim 4, further comprising a ceramic heat sink (13), the laser chip (11) being disposed within the ceramic heat sink (13).