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a wave combiner

A technology of multiplexer and one channel, applied in the field of optical communication, can solve the problems of difficulty in production and manufacturing, the incidence position, the incidence angle and the precision requirements of the multiplexer, etc., to reduce the number of reflections, the number of light reflections, and the reduction of reflections. effect of times

Active Publication Date: 2019-11-05
HISENSE BROADBAND MULTIMEDIA TECH
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Problems solved by technology

Due to the large number of reflections of light in the multiplexer, the incident light λ1 is sequentially combined with the incident light λ2, incident light λ3, and incident light λ4 during the reflection process, and the four incident lights are sequentially superimposed inside the multiplexer. , these make the accuracy of the incident position, incident angle and wave combiner of each incident light very high in the process of realizing the combination of optical paths, which causes difficulties in production and manufacturing

Method used

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] Wavelength division multiplexing technology, especially dense wavelength division multiplexing technology, has become one of the main technologies in the field of optical communication to realize high-speed and large-capacity data transmission. In order to realize wavelength division multiplexing, it is necessary to use a multiplexer to combine multiple channels of light with different wavelengths into one channel of light.

[0034] The examples of wavelengt...

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Abstract

The embodiment of the invention provides a combiner and relates to the technical field of fiber-optic communication. The combiner comprises a first light path adjusting element, a second light path adjusting element, a first filtering and light combining element, a second filtering and light combining element, a polarization state change element and a polarization and light combining element. By means of the light combiner, at least four paths of light can be combined into one path of light, and the reflection frequency of the light in the combining process is reduced.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to a multiplexer. Background technique [0002] Wavelength division multiplexing technology, especially dense wavelength division multiplexing technology, has become one of the main technologies in the field of optical communication to realize high-speed and large-capacity data transmission. In order to realize wavelength division multiplexing, it is necessary to use a multiplexer to combine multiple channels of light with different wavelengths into one channel of light. [0003] figure 1 A wave combiner provided for the prior art. Such as figure 1 As shown, an existing multiplexer includes a rhomboid prism, one side of the rhomboid prism is coated with an anti-reflection coating and a high-reflection coating, and the other side of the rhomboid prism is pasted with four thin film filters. Among them, the anti-reflection film increases the transmission of light, and the high-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/10G02B27/28
CPCG02B6/2938G02B27/1006G02B27/286
Inventor 陈思乡
Owner HISENSE BROADBAND MULTIMEDIA TECH
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