Four-channel silicon-based arrayed waveguide grating wavelength division multiplexer

A technology of arrayed waveguide grating and wavelength division multiplexer, which is applied in the field of optical communication, can solve the problem of high AWG loss, and achieve the effect of reducing insertion loss, length and size

Inactive Publication Date: 2020-09-18
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a four-channel silicon-based arrayed wavegu

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  • Four-channel silicon-based arrayed waveguide grating wavelength division multiplexer
  • Four-channel silicon-based arrayed waveguide grating wavelength division multiplexer
  • Four-channel silicon-based arrayed waveguide grating wavelength division multiplexer

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Embodiment Construction

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0043] In view of the high loss of the traditional AWG in the prior art, the embodiment of the present invention provides a four-channel silicon-based arrayed waveguide grating wavelength division multiplexer. The smaller width of the second end transition section of the transition waveguide occupies the transition waveguide. The higher the ratio of the entire length, the slower the effective refractive index changes, w...

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Abstract

The embodiment of the invention provides a four-channel silicon-based arrayed waveguide grating wavelength division multiplexer, which is characterized in that the proportion of a smaller part of thewidth of a second end transition section in a transition waveguide in an arrayed waveguide grating to the whole length of the transition waveguide is higher, so that the effective refractive index ischanged more slowly, and the insertion loss of a device can be effectively reduced; the ratio of the width of the first end transition section in the transition waveguide to the whole length of the transition waveguide is reduced to some extent, the effective refractive index of the transition waveguide is not changed greatly, the unnecessary length of the first end transition section can be reduced, the size is reduced, and the loss of the transition waveguide is lower than that of a linear transition mode.

Description

Technical field [0001] The present invention relates to the field of optical communication technology, in particular to a four-channel silicon-based arrayed waveguide grating wavelength division multiplexer. Background technique [0002] With the rapid growth of global communication traffic, people put forward higher requirements for communication bandwidth, and traditional communication technology has been difficult to meet the ever-increasing demand for communication bandwidth. In order to greatly increase the capacity of optical fiber communication systems and double to several times the physical limit of information transmitted by an optical fiber, WDM technology can be used in the (Wavelength Division Multipleplexing, WDM) transmission system to realize the simultaneous use of two optical fibers in the same optical fiber. One or more than two optical wavelength signals each transmit information through different optical channels. [0003] In the WDM transmission system, the w...

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Application Information

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IPC IPC(8): G02B6/124G02B6/125G02B6/122
CPCG02B6/12009G02B6/1228G02B6/124G02B6/125G02B2006/12038
Inventor 陈远祥付佳韩颖黄雍涛李凯乐余建国
Owner BEIJING UNIV OF POSTS & TELECOMM
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