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Universal silicon-based integrated optical waveguide mode converter

A technology integrating optical waveguides and mode converters, applied in the field of communication modes, can solve problems such as poor versatility, and achieve the effects of good versatility, flexible regulation, and reduction of conversion loss.

Active Publication Date: 2020-10-13
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a general-purpose silicon-based integrated optical waveguide mode converter, which solves the problems that the existing mode converter can only realize the conversion between specific modes and has poor versatility.

Method used

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  • Universal silicon-based integrated optical waveguide mode converter
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  • Universal silicon-based integrated optical waveguide mode converter

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Embodiment Construction

[0021] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0022] Such as figure 1 As shown, the present invention provides a general-purpose silicon-based integrated optical waveguide mode converter, which uses two star couplers combined with an array optical switch composed of an independent phase shifter on the array waveguide and cascaded optical switches to realize The conversion between any same-polarized light field mode TEi→TEj / TMi→TMj, in this way, can realize the conversion from any input waveguide mode to any same-polarized output waveguide mode, and the structure has strong reconfigurability, which can meet the mode conversion of different applications need. Specifically, it includes an input waveguide, the input waveguide is connected to the input mode conversion module, the input mode conversion module is connected to one end of the intermediate c...

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Abstract

The invention belongs to the technical field of communication modes, and discloses a universal silicon-based integrated optical waveguide mode converter. The converter. includes an input waveguide, the input waveguide is connected with an input mode conversion module, the input mode conversion module is connected with one end of a middle connecting waveguide, the other end of the intermediate connection waveguide is connected with an output mode conversion module, the output module conversion module is connected with an output waveguide, the input waveguide is used for transmitting input lightwaves, the input mode conversion module is used for converting the mode of the input light waves into a fundamental mode, the intermediate connection waveguide is used for transmitting the light waves in the fundamental mode, the output mode conversion module is used for converting the light waves in the fundamental mode into a mode required by output light waves, and the output waveguide is usedfor transmitting the output light waves. The converter provided by the invention can realize conversion between any same polarization light field mode, and has better universality, flexibility and programming reconstruction capability.

Description

technical field [0001] The invention relates to the technical field of communication modes, in particular to a general-purpose silicon-based integrated optical waveguide mode converter. Background technique [0002] In recent years, with the increasing demand of the human society for the data transmission capacity and bandwidth of the communication network, the traditional integrated circuit technology has begun to show a tendency to fail to meet people's needs, while the all-optical communication technology can avoid the photoelectric conversion process. Problems such as noise, bit error and power consumption can greatly improve the transmission capacity and bandwidth of communication, so it develops rapidly. Silicon-based photonic technology has become a research hotspot in the field of photonic integration due to its advantages such as large refractive index difference between silicon waveguide core and cladding, processing technology compatible with traditional CMOS tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/14
CPCG02B6/14
Inventor 周林杰卢平许维翰陆梁军陈建平刘娇
Owner SHANGHAI JIAO TONG UNIV
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