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A broadband tunable beam splitting ratio polarization-rotating beam splitter based on soi

A polarization rotation and beam splitter technology, applied in the field of optical communication, can solve the problems of inability to integrate, large size, etc., and achieve the effect of fast response and low power consumption

Active Publication Date: 2022-07-08
SOUTHEAST UNIV
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  • Abstract
  • Description
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Problems solved by technology

In order to realize the rotation and beam splitting of light, glass and prisms were usually used in the early days, but these two devices are large in size and cannot be integrated, so good alternative materials are required for practical applications

Method used

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  • A broadband tunable beam splitting ratio polarization-rotating beam splitter based on soi
  • A broadband tunable beam splitting ratio polarization-rotating beam splitter based on soi
  • A broadband tunable beam splitting ratio polarization-rotating beam splitter based on soi

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the technical scheme of the present invention is described in further detail:

[0026] The present invention may be embodied in many different forms and should not be considered limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0027] like figure 1 shown, figure 1 It is a schematic diagram of the overall structure of a broadband adjustable beam splitting ratio polarization rotation beam splitter based on SOI proposed by the present invention. The beam splitter includes a waveguide layer, a thermal electrode and a buffer layer, wherein the waveguide layer includes an input waveguide 1, a thermal electrode, and a buffer layer. The four-segment tapered ridge waveguide 2, the S-shaped curved ridge waveguide and the straight waveguide 3, the Archimedes spiral ...

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Abstract

The invention discloses a broadband adjustable beam splitting ratio polarization rotation beam splitter based on SOI. The beam splitter includes a waveguide layer, a thermal electrode, a buffer layer, an input end and an output end, and the waveguide layer includes a three-segment puller Tapered ridge waveguide, S-shaped curved ridged waveguide and straight waveguide, Archimedes spiral curved ridged waveguide, straight ridged waveguide and output ridged waveguide, made of SOI material, the hot electrode and buffer layer are arranged in sequence Above the waveguide layer, and the hot electrode is made of TiN material, and the temperature of the hot electrode can be changed by applying a voltage across the two ends of the hot electrode. The invention can realize polarization rotation, beam splitting and beam splitting ratio adjustment of the input optical signal, and can be applied to polarization multiplexing systems, coherent optical communication systems, optical logic gate design, etc., and has the advantages of low insertion loss, simple process and repeatability It has the advantages of strong structure and wide working bandwidth.

Description

technical field [0001] The present invention relates to the technical field of optical communication, in particular to a SOI-based broadband adjustable beam splitting ratio polarization rotation beam splitter. Background technique [0002] With the gradual development of informatization, people's demand for information transmission and processing with ultra-high speed, ultra-large capacity and ultra-low power consumption is increasing day by day, which has also brought about the vigorous development of modulation technology and multiplexing technology. Various analog modulation techniques and digital modulation techniques have significantly improved the spectral utilization of optical communications. Multiplexing technology can further improve the communication capacity on the basis of modulation technology. Among them, polarization multiplexing is to use different polarization states to carry information at the same time for communication. Generally, two orthogonal polariz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/01G02B6/126G02B6/122
CPCG02F1/0147G02F1/011G02F1/0136G02B6/126G02B6/122
Inventor 崔一平邓春雨胡国华徐嘉鑫孙彧黄磊恽斌峰张若虎
Owner SOUTHEAST UNIV
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