NDLI: Thermal Sensitivity of the Birefringence of Air-Core Fibers and Implications for the RFOG

Content Provider	IEEE Xplore Digital Library
Author	Xiang Zhao Louveau, J. Chamoun, J. Digonnet, M.J.F.
Copyright Year	1983
Abstract	We present an analytical model of the drift in the resonant fiber optic gyroscope (RFOG) caused by thermally induced changes in the fiber beat length L_B(T) and find that the relevant metric for thermal-drift performance is not dL_B/dT but rather (1/L_B²)dL_B/dT. This disfavors conventional solid-core PM fibers for which L_B is very short and dL_B/dT is large. Because the air core of hollow-core fibers does not support the strains associated with differential thermal expansion in conventional PM fibers, the birefringence of hollow-core fibers should be more thermally stable than conventional fibers with a correspondingly smaller (1/L_B²)dL_B/dT. To identify the relative merits of different types of fibers in the RFOG, we measure (1/L_B²)dL_B/dT for a variety of air-core and solid-core fibers by recording the shift in the resonance frequencies of an all-fiber ring resonator when its temperature is changed. We find that the PM air-core fiber offers a 270-fold improvement in (1/L_B²)dL_B/dT coefficient compared to a Panda fiber.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	2577
Ending Page	2581
Page Count	5
File Size	391832
File Format	PDF
ISSN	07338724
Volume Number	32
Issue Number	14
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-15
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fiber polarization Optical fiber couplers Optical fiber sensors Temperature measurement Optical ring resonators Resonant frequency thermal stability Birefringence inertial navigation optical fiber applications optical fiber devices optical fiber sensors optical fibers optical resonators
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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