Wavelength division multiplexing module

a technology of multiplexing module and wavelength division, which is applied in the field of optical modules, can solve the problems of increasing the cost of optical cable deployment, and increasing the demand for optical transceiver modules capable of transmitting massive amounts of optical signals, and achieves the effect of reducing volume and simple structur

Active Publication Date: 2020-04-30
ELITE ADVANCED LASER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]The invention provides a wavelength division multiplexing module having reduced volume and a simple structure.
[0020]To sum up, in the wavelength division multiplexing module provided by the invention, wavelength division or multiplexing is performed on the light beams or the mixed light beam through the reflection region and the light transmission region on one side of the optical division element. Further, at least two of the light emitting elements or the light receiving elements are arranged in the extending direction of the housing. Therefore, the design of the housing may be simple, the wavelength division multiplexing module may be easily calibrated since the light ray angles in the wavelength division multiplexing module are susceptible to less changes, and that the volume taken up by the wavelength division multiplexing module is effective reduced.

Problems solved by technology

Therefore, based on high bandwidth requirements, demands for optical transceiver modules capable of transmitting massive amount of optical signal also become higher each day.
However, costs in deployment of optical cables can be fairly expensive.
Nonetheless, the existing wavelength division multiplexer involves numerous components, which lead to higher costs and lower yield rate in the manufacturing process due to complexity in terms of configuration.
Therefore, how to provide the wavelength division multiplexer designed with simple architecture, lesser space occupied in the device and wider application for multiple devices has long been an issue to be addressed by persons skilled in the art.

Method used

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Embodiment Construction

[0031]FIG. 1 is a schematic three-dimensional view of a wavelength division multiplexing module according to an embodiment of the invention. FIG. 2 is a schematic three-dimensional view of the wavelength division multiplexing module of FIG. 1 from another view angle. With reference to FIG. 1 and FIG. 2, a wavelength division multiplexing module 100 provided by the invention is adapted to combine a plurality of light beams to a mixed light beam or is adapted to convert a mixed light beam to a plurality of light beams. The wavelength division multiplexing module 100 can be applied to serve an optical signal device using optical signals with multiple wavelengths, such as a coarse wavelength division multiplexer (CWDM), a dense wavelength division multiplexer (DWDM), or optical signal devices of other types. The wavelength division multiplexing module 100 adapted to combine the light beams to the mixed light beam is taken as an example in a majority part of the description below.

[0032]F...

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Abstract

A wavelength division multiplexing module adapted to combine a plurality of light beams to a mixed light beam is provided. The wavelength division multiplexing module includes a housing, a plurality of light emitting elements, an optical division element, and a plurality of reflectors. The light emitting elements are adapted to provide light beams. The optical division element is disposed on a transmission path of the light beams. The reflectors are disposed on the transmission path of the light beams. The optical division element has a reflection region and a light transmission region on one side opposite to the light emitting elements. The reflection region is adapted to reflect a portion of the light beams, and the light transmission region is adapted to allow the mixed light beam to pass through. At least two of the light emitting elements are arranged in an extending direction of the housing.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefit of Taiwan application serial no. 107214519, filed on Oct. 25, 2018. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUNDTechnical Field[0002]The invention relates to an optical module. More particularly, the invention relates to a wavelength division multiplexing module.Description of Related Art[0003]With advancements in communication technologies, communication methods are no longer limited by implementation using electrical signals. In recent technological development, optical communication technologies have been developed to realize signal transmission with optical signals. Because transmission speed and distance of light is far higher and longer than electrons, optical communication technologies have gradually become the mainstream in the market. Therefore, based on high bandwidth requirements, dem...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): F21V7/00H04J14/02
CPCF21V7/0083H04J14/02G02B6/29367G02B6/4214G02B6/4215H04B10/506H04B10/67
InventorCHENG, CHU-LIANGWANG, CHI-HUA
OwnerELITE ADVANCED LASER CORP