Y-Type Branch Waveguide Used in Resonant Micro-Optic Gyro

Jun Jie Wang; Li Shuang Feng; Wei Wang; Hui Lan Liu; Ru Ya Li

doi:10.4028/www.scientific.net/KEM.562-565.222

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 562-565Y-Type Branch Waveguide Used in Resonant...

Y-Type Branch Waveguide Used in Resonant Micro-Optic Gyro

Abstract:

Resonant Micro-Optic Gyro (RMOG) is a kind of optical sensors measuring angular velocity via Sagnac Effect, which yields different central resonant frequency between the clockwise (CW) and counterclockwise (CCW) light path of a ring-resonator when rotating. In this paper, Y-type branch waveguide is put forward to replace K-type coupler in RMOG to reduce the influence of splitting ratio asymmetry due to fabrication errors and temperature drift. Y-type branch waveguide based on silicon-on-silica is designed and analyzed. Simulation results show that Y-type branch waveguide performs better fabrication tolerance than K-type coupler, which reduces the nonlinear Kerr-Effect induced noise excited by power nonuniformity of the counter-propagating beams, therefore the detection sensitivity of RMOG can be improved.

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Periodical:

Key Engineering Materials (Volumes 562-565)

Pages:

222-226

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.562-565.222

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Online since:

July 2013

Authors:

Jun Jie Wang, Li Shuang Feng, Wei Wang, Hui Lan Liu, Ru Ya Li

Keywords:

Gyro, Kerr Effect, Waveguide, Y-Type Branch

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References

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