Realization and tests of an open loop multimode fiber optic gyroscope

2009 ◽  
Author(s):  
H. Medjadba ◽  
S. Lecler ◽  
L. M. Simohamed ◽  
A. Chakari ◽  
P. Meyrueis
Keyword(s):  
Fiber Optic ◽  
Open Loop ◽  
Multimode Fiber ◽  
Fiber Optic Gyroscope

Open Loop Fiber Optic Gyroscope : A Technical Note

1996 ◽  
Vol 46 (4) ◽  
pp. 283-288
Author(s):  
M.H. Khan ◽  
C. Ramakrishna
Keyword(s):  
Fiber Optic ◽  
Open Loop ◽  
Technical Note ◽  
Fiber Optic Gyroscope

Single-channel phase-tracker for the open-loop fiber optic gyroscope

1992 ◽  
Author(s):  
Alan D. Kersey ◽  
Robert P. Moeller ◽  
Timothy A. Berkoff ◽  
William K. Burns
Keyword(s):  
Fiber Optic ◽  
Single Channel ◽  
Open Loop ◽  
Fiber Optic Gyroscope

Feedback effects in erbium-doped fiber amplifier/source for open-loop fiber-optic gyroscope

1997 ◽  
Vol 15 (8) ◽  
pp. 1587-1593 ◽  
Author(s):  
Hee Gap Park ◽  
Kyoung Ah Lim ◽  
Young-Jun Chin ◽  
Byoung Yoon Kim
Keyword(s):  
Fiber Optic ◽  
Fiber Amplifier ◽  
Open Loop ◽  
Fiber Optic Gyroscope ◽  
Feedback Effects ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped

All-digital signal-processing open-loop fiber-optic gyroscope with enlarged dynamic range

2013 ◽  
Vol 38 (24) ◽  
pp. 5422 ◽  
Author(s):  
Qin Wang ◽  
Chuanchuan Yang ◽  
Xinyue Wang ◽  
Ziyu Wang
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Fiber Optic ◽  
Dynamic Range ◽  
Digital Signal ◽  
Open Loop ◽  
Fiber Optic Gyroscope

scholarly journals Efficient Modulation and Processing Method for Closed-Loop Fiber Optic Gyroscope with Piezoelectric Modulator

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1710 ◽  
Author(s):  
Michal Skalský ◽  
Zdeněk Havránek ◽  
Jiří Fialka
Keyword(s):  
Phase Shift ◽  
Closed Loop ◽  
Fiber Optic ◽  
Open Loop ◽  
Fiber Optic Gyroscope ◽  
Simple Method ◽  
Source Power ◽  
Custom Made ◽  
The Common ◽  
Sagnac Phase

This paper presents a simple method for compensating the Sagnac phase shift in an interferometric fiber-optic gyroscope (I-FOG) with a piezoelectric modulator. The common advantages of I-FOGs with closed-loop compensation are linearized output characteristics and insensitivity to the light source power, including its time and thermal-induced fluctuations. Whereas closed-loop operation is normally achieved via ramp modulation requiring an electro-optic modulator, all-fiber architectures with a piezoelectric modulator are mostly limited to open loop. Nevertheless, such setups can more conveniently utilize a less expensive single-mode fiber with depolarized light and do not require any custom-made components. The proposed method allows us to combine the advantages of both approaches. Closed-loop compensation is ensured by adding further sinusoidal modulation to the common biasing modulation, such that the Sagnac phase shift is compensated solely at the sampling instants. We describe and experimentally demonstrate the proposed approach, utilizing a test setup to compare our closed-loop solution with open-loop operation. The results denote that the method provides a cost-efficient manner of performance improvement compared to the open-loop I-FOGs based on a piezoelectric modulator.

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