Temperature-insensitive lateral force sensor based on photonic crystal fiber Sagnac interferometer

zu peng; xiang wanghua; bai yangbo; jin yongxing

Volume 23 Issue 07

Sep. 2012

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Article Navigation > High Power Laser and Particle Beams > 2011 > 23(07): 0-

zu peng, xiang wanghua, bai yangbo, et al. Temperature-insensitive lateral force sensor based on photonic crystal fiber Sagnac interferometer[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

zu peng, xiang wanghua, bai yangbo, et al. Temperature-insensitive lateral force sensor based on photonic crystal fiber Sagnac interferometer[J]. High Power Laser and Particle Beams, 2011, 23.

zu peng, xiang wanghua, bai yangbo, et al. Temperature-insensitive lateral force sensor based on photonic crystal fiber Sagnac interferometer[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

zu peng, xiang wanghua, bai yangbo, et al. Temperature-insensitive lateral force sensor based on photonic crystal fiber Sagnac interferometer[J]. High Power Laser and Particle Beams, 2011, 23.

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Temperature-insensitive lateral force sensor based on photonic crystal fiber Sagnac interferometer

1.
College of Precision Instrument and Opto-Electronics Engineering,Tianjin University,Tiangjin 300072,China;
2.
Key Laboratory of Opto-Electronics Information and Technical Science of Ministry of Education,Tianjin University,Tianjjin 300072,China;
3.
School of Chemical and Biomedical Engineering,Nanyang Technological University,637598,Singapore

Publish Date: 2011-07-21

Abstract

Abstract

A lateral force sensor based on low birefringence photonic crystal fiber Sagnac interferometer is proposed. The sinusoidal interference spectrum is produced due to the initial lateral force which is pre-applied on the low birefringence fiber. The load placed on the fiber introduces extra birefringence and corresponding spectrum shift for measurement. The sensitivity achieved is 0.529 nm/(N·mm). The property of temperature-insensitivity is verified in the experiment with the temperature coefficient of -0.4 pm/℃ which can be neglected.
- phonic crystal fiber sensor,
- lateral force sensor,
- sagnac interferometer,
- ultralow temperature coefficient