Hybrid-integrated Michelson fiber optic accelerometer

Bo Wu; Caihe Chen; Guilan Ding; Delong Zhang; Yuming Cui

doi:10.1117/1.1634593

1 February 2004 Hybrid-integrated Michelson fiber optic accelerometer

Bo Wu, Caihe Chen, Guilan Ding, Delong Zhang, Yuming Cui

Optical Engineering, Vol. 43, Issue 2, (February 2004). https://doi.org/10.1117/1.1634593

A novel hybrid-integrated fiber optic accelerometer, based on Michelson interferometry, is developed. It makes use of a seismic mass suspended by a transduction fiber in a mass support. The Michelson interferometer is realized by a symmetrical double Y-branching waveguide and three polarizers, which are monolithically integrated on an x-cut, y-propagating LiNbO3 substrate with dimensions of X×Y×Z = 2×38×6 mm. On the distal endfaces of both interferometric arms, high-reflectance aluminum films are directly coated and serve as reflecting mirrors. An alternating current phase tracking (PTAC) homodyne scheme has been employed to process the signal. The performance of a prototype of the accelerometer is characterized. The measured frequency spectrum is in good agreement with the theoretical prediction.

©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Bo Wu, Caihe Chen, Guilan Ding, Delong Zhang, and Yuming Cui "Hybrid-integrated Michelson fiber optic accelerometer," Optical Engineering 43(2), (1 February 2004). https://doi.org/10.1117/1.1634593

Published: 1 February 2004

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