Optical switch based on reverse Fano coupling micro-ring
An optical switch and reverse technology, applied in the coupling of optical waveguide, optics, light guide, etc., can solve the problems of narrow bandwidth and high power consumption of optical switches, and achieve the effects of small resonant wavelength shift, low power consumption and low insertion loss
Active Publication Date: 2021-06-04
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
[0003] Aiming at the defects of related technologies, the object of the present invention is to provide an optical switch based on reverse Fano coupling microring, aiming at solving the problems of narrow bandwidth and high power consumption of existing optical switches
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0024] The technical scheme adopted in the present invention is:
[0025] Such as figure 1 As shown, the present invention includes a first ring waveguide 1 , a second ring waveguide 2 , a first straight waveguide 3 and a second straight waveguide 4 . When the light enters the first straight waveguide 3 from the first input end 7 , part of it is coupled into the first ring waveguide 1 and the ...
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The invention discloses an optical switch device based on a reverse Fano coupling micro-ring structure, and belongs to the field of integrated photonic devices. The optical switch is composed of two annular waveguides and two straight waveguides, the two ends of the straight waveguide between the two annular waveguides serve as a first input end and a first output end respectively, and the two ends of the bottom straight waveguide serve as a second output end and a second input end respectively. The reverse Fano spectral line generated by coupling the two annular waveguides has the advantages of steep band edge and large bandwidth. Left and right reverse Fano spectral lines can be realized by changing the width of the straight waveguide, switching of on and off states can be realized at the first output end and the second output end by changing the refractive index of the second annular waveguide or changing the refractive indexes of the two annular waveguides, and the optical switch device is suitable for different application scenes. The optical switch device has the advantages of large broadband, low insertion loss and low power consumption.
Description
technical field [0001] The invention belongs to the field of integrated photonic devices, and more specifically relates to an optical switch based on a reverse Fano coupling microring. Background technique [0002] With the development of the times, people's demand for communication capacity is constantly increasing, and it also puts forward higher requirements for the performance of the optical control module in the optical network. As an important basic unit in the optical control module, the performance of the optical switch can often directly affect the working performance of the entire optical module. The existing optical switches mainly have two structures, one is based on the Mach-Zehnder interferometer, and the other is based on the coupled microring structure. The optical switch based on the Mach-Zehnder interferometer structure has ultra-high bandwidth, but its practical application is very limited due to its large size and high power consumption to achieve a larg...
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Login to View More IPC IPC(8): G02B6/12G02B6/35
CPCG02B6/12G02B6/3536G02B6/354G02B2006/12145G02B2006/12147
Inventor 黄庆忠原旗旗张颖刘强
Owner HUAZHONG UNIV OF SCI & TECH