Array waveguide grating based on auxiliary waveguides

A technology of arrayed waveguide grating and arrayed waveguide, which is applied in the field of communication, can solve problems such as optical mutation and increase device coupling loss, and achieve performance optimization, reduce insertion loss, and reduce loss

Active Publication Date: 2021-11-02
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Between the input channel waveguide and the slab waveguide, the array waveguide and the slab waveguide, the output channel waveguide and the slab waveguide, if no corresponding transition structure is added, the light will undergo a sudden change, and the coupling loss of the device will be increased through the change of reflection and scattering.

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  • Array waveguide grating based on auxiliary waveguides
  • Array waveguide grating based on auxiliary waveguides
  • Array waveguide grating based on auxiliary waveguides

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Embodiment Construction

[0025] In order to better understand the technical solution, the method of the present invention will be described in detail below in conjunction with the accompanying drawings. As used herein, the term "coupled" means any connection, coupling, link, etc., and "optical coupling" means a coupling that causes light to be passed from one element to another. Such "coupled" devices are not necessarily directly connected to one another, but may be separated by intermediate components or devices that manipulate or modify such signals. Also, the terms "directly coupled" or "direct optical coupling" as used herein refer to any optical connection that allows light to be passed from one element to another without intervening devices such as optical fibers.

[0026] Such as figure 1 As shown, the present invention provides an arrayed waveguide grating based on an auxiliary waveguide, including an input channel waveguide 1, a slab waveguide 2, an arrayed waveguide 3 and an output channel ...

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Abstract

The invention discloses an array waveguide grating based on auxiliary waveguides, which comprises an input channel waveguide, slab waveguides, array waveguides and an output channel waveguide, the auxiliary waveguides are respectively added between the array waveguides and the slab waveguides adjacent to the array waveguides, the number range of the array waveguides is 10-20, the distance do of the array waveguides is within the range of 5-10 microns, the distance di of the input/output waveguide is 5-12 [mu]m, the diffraction series is 8-20, the length L of the auxiliary waveguide is 300-500 [mu]m, the width Win of the input end is equal to do-width, and the width Wout of the output end is 0.1-3 [mu]m. According to the array waveguide grating, light is better diffracted when entering the array waveguide from the slab waveguide, loss caused by mode mismatch is reduced, insertion loss of the array waveguide grating is reduced, bandwidth is increased to a certain extent, and the size of a device is not increased.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an arrayed waveguide grating based on auxiliary waveguides. Background technique [0002] With the rapid growth of global communication traffic, high-speed and large-capacity broadband optical network technology has been developed rapidly. The use of Wavelength Division Multiplexing (WDM for short) technology can greatly increase the capacity of optical fiber communication systems and realize multi-functional all-optical network technology, which has shown great potential and is currently the main research direction in the field of optical communication. [0003] As a typical wavelength division multiplexing device, Arrayed Waveguide Grating (AWG) has the advantages of compact structure, high reliability, and easy integration with active devices such as optical amplifiers and semiconductor lasers to achieve monolithic integration. The system has a wide range of applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/12
CPCG02B6/12009
Inventor 陈远祥付佳孙尚斌韩颖黄雍涛林尚静余建国
Owner BEIJING UNIV OF POSTS & TELECOMM
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