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Coarse wavelength division multiplexer/demultiplexer and optical communication equipment

A demultiplexer and wavelength division multiplexing technology, applied in the field of optical communication and silicon-based optoelectronics

Active Publication Date: 2020-10-27
UNITED MICROELECTRONICS CENT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a kind of coarse wavelength division multiplexing / demultiplexing device and optical communication equipment, be used to solve difficult in the prior art while maintaining AMMI coarse wavelength division multiplexing / demultiplexing. Under the premise of the size advantage of the demultiplexer, the problem of increasing the number of output channels and realizing multi-wavelength splitting

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  • Coarse wavelength division multiplexer/demultiplexer and optical communication equipment
  • Coarse wavelength division multiplexer/demultiplexer and optical communication equipment
  • Coarse wavelength division multiplexer/demultiplexer and optical communication equipment

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Embodiment Construction

[0033] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0034] see Figure 1 ~ Figure 3 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbi...

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Abstract

The invention provides a coarse wavelength division multiplexer / demultiplexer and optical communication equipment. The coarse wavelength division multiplexer / demultiplexer at least comprises a first-order output waveguide region for outputting through a first-order self-mapping effect and a second-order output waveguide region for outputting through a second-order self-mapping effect,. According to the coarse wavelength division multiplexer / demultiplexer, the output waveguide is divided into the output waveguide regions with different orders, so that the number of output channels is increased,and the wavelength division multiplexing / demultiplexing capability of a single AMMI is improved on the premise of not increasing the size of the multimode waveguide; furthermore, by increasing the interval of the central wavelengths output by the adjacent output waveguides, the performance of the device can be maintained while the integration level is improved, so that crosstalk is prevented frombeing increased; therefore, the coarse wavelength division multiplexer / demultiplexer provided by the inventionis low in insertion loss, small in device size and simple in design and process manufacturing.

Description

technical field [0001] The invention belongs to the field of optical communication and silicon-based optoelectronics, and relates to a coarse wavelength division multiplexer / demultiplexer and optical communication equipment. Background technique [0002] Coarse wavelength division multiplexing (CWDM for short), also known as sparse wavelength division multiplexing and sparse wavelength division multiplexing, is a method that uses an optical multiplexer to multiplex wavelengths transmitted in different optical fibers into one optical fiber The medium-transmission technology has a wide range of applications in the field of optical communications, such as 5G fronthaul optical networks, optical modules, and data centers. [0003] AMMI (Angled Multimode Interferometer, AMMI for short) is a silicon-based optoelectronic device that utilizes the multimode waveguide self-image effect to realize coarse wavelength division multiplexing / demultiplexing. Its basic structure is: the input...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/12
CPCG02B6/12007
Inventor 李智慧梁宇鑫杨忠华崔乃迪何来胜
Owner UNITED MICROELECTRONICS CENT CO LTD