Multi-wavelength beam combining device
By rationally arranging and combining the multi-wavelength beam combining device of the Z-block module, the problem of beam distortion caused by the increased optical path length in the optical module was solved, the coupling efficiency was improved, and a highly efficient optical beam combining effect was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, as the number of channels increases, the optical path of the optical module becomes longer, the number of reflections increases, resulting in light spot deformation and reduced coupling efficiency.
Design a multi-wavelength beam combining device, including a laser module, a collimating mirror module, a wavelength division multiplexing module, a coupling module, and an optical fiber. By rationally arranging and combining Z-block modules, a beam array is formed using collimation, beam combining, and coupling mirrors to improve coupling efficiency.
It significantly improves coupling power, has a simple structure, and is suitable for industrial application.
Smart Images
Figure CN224122799U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of optical communication technology, specifically relating to a multi-wavelength beam combining device. Background Technology
[0002] As laser modules increase their demands for coupling power and multi-wavelength beam combining, optical modules are required to combine more wavelengths in the smallest possible space.
[0003] Optical modules typically feature wavelength division multiplexing (WDM) capabilities, comprising an optical platform and WDM optical components. Currently, four-channel Z-Block modules are commonly available. However, increasing the number of channels inevitably leads to issues with the last two or three channels, where excessively long optical paths result in numerous reflections, causing beam distortion and reduced coupling efficiency. Therefore, there is an urgent need to develop a multi-wavelength beam combiner with high coupling efficiency. Utility Model Content
[0004] To address the technical problems existing in the prior art, the purpose of this utility model is to provide a multi-wavelength beam combining device.
[0005] To achieve the above objectives and technical effects, the technical solution adopted by this utility model is as follows:
[0006] A multi-wavelength beam combining device includes a laser module, a collimating mirror module, a wavelength division multiplexing (WDM) module, a coupling module, and an optical fiber arranged sequentially along the optical axis. The coupling module includes a mirror module and a coupling mirror. There is a single optical fiber. The laser module, collimating mirror module, WDM module, and mirror module are arranged in several groups. Each group of laser modules is arranged sequentially along the optical axis with one group of collimating mirror modules, one group of WDM modules, and one group of mirror modules.
[0007] Furthermore, each laser module includes several lasers arranged in a row, each collimating lens module includes several collimating lenses arranged in a row, each wavelength division multiplexing module includes a four-channel Z-block module and several filters, and each reflector module includes a reflector. Each laser, collimating lens, filter, and reflector are arranged sequentially along the optical axis. The laser emits laser light, which is collimated by the collimating lens. The collimated parallel light enters the Z-block module for beam combining after passing through the filter. The combined parallel light forms a beam array after passing through the reflector, and then enters the same optical fiber after being coupled by the coupling lens.
[0008] Furthermore, every three Z-block modules are stacked vertically.
[0009] Furthermore, every three laser modules are stacked vertically.
[0010] Furthermore, every three reflectors are staggered, and the number of reflectors is the same as the number of Z-block modules, with their positions corresponding to each other.
[0011] Furthermore, one coupling mirror is provided.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model discloses a multi-wavelength beam combining device, which combines multiple Z-block modules. The laser emitted by the laser is collimated by a collimating lens, and the collimated parallel light enters the Z-block module for beam combining after passing through a filter. The combined parallel light forms a beam array after passing through a reflector module, and then enters the optical fiber after being coupled by a coupling mirror. This is beneficial to significantly improve the coupling power. The overall structure is simple and reasonable, and it is suitable for industrial promotion and use. Attached Figure Description
[0014] Fig. 1 This is a schematic diagram of the structure of this utility model;
[0015] Fig. 2 This is the optical path diagram of this utility model. Detailed Implementation
[0016] The present invention will now be described in detail so that its advantages and features can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0017] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.
[0018] like Figs. 1-2As shown, a multi-wavelength beam combining device includes a laser module 1, a collimating mirror module 2, a wavelength division multiplexing (WDM) module 3, a coupling module 4, and an optical fiber 5 arranged sequentially along the optical axis. The coupling module includes a mirror module 410 and a coupling mirror 420. There is a single optical fiber 5. Several groups of laser modules 1, 2, 3, and 410 are arranged, with each group of laser modules 1, 2, 3, and 410 arranged sequentially along the optical axis. Laser light emitted from laser module 1 is collimated by the corresponding collimating mirror module 2. The collimated parallel light is then combined by the WDM module 3. The combined parallel light passes through the mirror module 410 to form a beam array, and then is coupled by the coupling mirror 420 before entering the same optical fiber 5.
[0019] Each laser module 1 includes several lasers arranged in a row, each collimating lens module 2 includes several collimating lenses arranged in a row, each wavelength division multiplexing module 3 includes a four-channel Z-block module 310 and several filters 320, and each reflector module 410 includes a reflector. Each laser, collimating lens, filter 320, and reflector are arranged sequentially along the optical axis. Each laser emits laser light, which is collimated by its corresponding collimating lens. The collimated parallel light passes through its corresponding filter 320 and enters its corresponding Z-block module 310 for beam combining. The combined parallel light passes through the reflector module 410 to form a beam array, and then is coupled by the coupling mirror 420 before entering the same optical fiber 5.
[0020] Three laser modules are stacked vertically.
[0021] Three Z-block modules 310 are stacked vertically.
[0022] Three reflectors are staggered, and the number of reflectors is the same as the number of Z-block modules 310, with their positions corresponding.
[0023] The parts or structures not specifically described in this utility model can be made using existing technology or existing products, and will not be elaborated here.
[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A multi-wavelength beam combining device, characterized in that, The system includes a laser module, a collimating lens module, a wavelength division multiplexing (WDM) module, a coupling module, and an optical fiber arranged sequentially along the optical axis. The coupling module includes a mirror module and a coupling mirror. There is one optical fiber. The laser module, collimating lens module, WDM module, and mirror module are arranged in several groups. Each group of laser modules is arranged sequentially along the optical axis with one group of collimating lens modules, one group of WDM modules, and one group of mirror modules.
2. The multi-wavelength beam combining device according to claim 1, characterized in that, Each laser module includes several lasers arranged in a row, each collimating lens module includes several collimating lenses arranged in a row, each wavelength division multiplexing module includes a four-channel Z-block module and several filters, and each reflector module includes a reflector. Each laser, collimating lens, filter, and reflector are arranged sequentially along the optical axis. The laser emits laser light, which is collimated by the collimating lens. The collimated parallel light passes through the filter and enters the Z-block module for beam combining. The combined parallel light passes through the reflector to form a beam array, and then is coupled by the coupling mirror before entering the same optical fiber.
3. A multi-wavelength beam combining device according to claim 2, characterized in that, Three Z-block modules are stacked vertically.
4. A multi-wavelength beam combiner according to claim 2, characterized in that, Three laser modules are stacked vertically.
5. A multi-wavelength beam combiner according to claim 2, characterized in that, Three reflectors are staggered in every three reflectors, and the number of reflectors is the same as the number of Z-block modules, with their positions corresponding to each other.
6. A multi-wavelength beam combiner according to claim 1, characterized in that, One coupling mirror is provided.