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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/TE02000202" target="_blank" >TE02000202: Pokročilé senzory a metody zpracování senzorových dat</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

4

Strana od-do

26-29

Název nakladatele

Zeithamlová Milena Ing. - Agentura Action M

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

25. 10. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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