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Title:
SIN-BASED INTEGRATED OPTICAL CHIP FOR OPTICAL FIBER GYROSCOPE EMPLOYING SION POLARIZER
Document Type and Number:
WIPO Patent Application WO/2023/103610
Kind Code:
A1
Abstract:
A SiN-based integrated optical chip for an optical fiber gyroscope employing a SiON polarizer comprises a first optical fiber-waveguide mode converter (1-1), a second optical fiber-waveguide mode converter (1-2), a first 3 dB coupler (2), a SiON polarizer, a second 3 dB coupler (6), a third optical fiber-waveguide mode converter (7-1) and a fourth optical fiber-waveguide mode converter (7-2). The invention can effectively improve the stability and reliability of an open-loop optical fiber gyroscope while ensuring the precision thereof. The open-loop optical fiber gyroscope is compact, and has low power consumption and cost, and simple structural design and process.

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Inventors:
LIU XIAOPING (CN)
LV HAIBIN (CN)
Application Number:
PCT/CN2022/126677
Publication Date:
June 15, 2023
Filing Date:
October 21, 2022
Export Citation:
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Assignee:
SHENZHEN OSNAV IND CO LTD (CN)
International Classes:
G01C19/72; G02B6/27
Foreign References:
CN113865578A2021-12-31
US20180259337A12018-09-13
US10871614B12020-12-22
CN107561646A2018-01-09
CN109579818A2019-04-05
CN112833873A2021-05-25
US20200371286A12020-11-26
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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