Reduced Thermal Sensitivity of a Fiber-Optic Gyroscope Using an Air-Core Photonic-Bandgap Fiber

• Published in: Journal of lightwave technology Vol. 25; no. 3; pp. 861 - 865
• Main Authors: Blin, S., Hyang Kyun Kim, Digonnet, M.J.F., Kino, G.S.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.03.2007; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Accuracy; Air-core fiber; Applied sciences; Circuit properties; Coiling; Coils; Electric, optical and optoelectronic circuits; Electronics; Exact sciences and technology; Fiber optics; fiber-optic gyroscope (FOG); Fibers; Gyroscopes; Integrated optics. Optical fibers and wave guides; Laboratories; Manufacturing; Optical and optoelectronic circuits; Optical fibers; Optical refraction; photonic-bandgap fiber (PBF); Reduction; Shupe effect; Silicon compounds; Stability; Temperature sensors; Thermal expansion; Thermal measurements; Integrated optics; photonic-bandgap fiber (PBF); Gyroscope; fiber-optic gyroscope (FOG); Fiber core; Air-core fiber; Shupe effect; Thermal sensitivity; Fog; Optical fiber
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2006.889658

A 6.5-fold reduction in thermal sensitivity is demonstrated experimentally in a fiber-optic gyroscope made of a 235-m length of quadrupolar-wound air-core fiber, compared to the same gyro operated with a similar coil of conventional (SMF28) fiber. This result is in good agreement with the theoretical value of 6.6 and the value of 7.5 expected from independent thermal measurements carried out on short pieces of the same fibers