Polarization-maintaining Fiber-optic Gyroscope Using a Closed-loop with Kalman Filtering

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00324563" target="_blank" >RIV/68407700:21230/18:00324563 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Polarization-maintaining Fiber-optic Gyroscope Using a Closed-loop with Kalman Filtering
Original language description
This paper presents results from the development of a fiber-optic gyroscope based exclusively on polarization-maintaining (PM) components. The main element represents the gyroscope coil, which consists of a 400m-long depressed-cladding PM fiber. To reduce temperature and stress effects, the gyroscope coil is wound in a quadrupolar fashion, which significantly reduces the inhomogeneous distribution of temperature and mechanical stress over the entire fiber coil. This results in mitigation of the so-called Shupe effect. We have employed a super-fluorescent fiber source to overcome the limiting effect of nonlinearities in order to improve the gyroscope performance. We compared the performance of a commercial super-luminescent LED and two types of in-house built super-fluorescent fiber sources realized by PM Erbium-doped fibers. We studied the effect of fiber doping, pumping powers and fiber length on the performance of the fiber-optic gyroscope. Using a digital feedback loop a gyroscope’s dynamic range can be dramatically increased and precision improved as well. In addition, Kalman filtering is proposed to further reduce parasitic drift effects. Conventional tools such as Allan variance are presented, depicting our long-term fiber-optic gyroscope development.
Czech name
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Czech description
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Project
<a href="/en/project/TE02000202" target="_blank" >TE02000202: Advanced sensors and sensor data processing methods</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
29th Conference and Exhibition on OPTICAL COMMUNICATIONS 2018
ISBN
978-80-86742-50-2
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
26-29
Publisher name
Zeithamlová Milena Ing. - Agentura Action M
Place of publication
Praha
Event location
Praha
Event date
Oct 25, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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