Title :
All-PANDA-fibre gyroscope with long-term stability
Author :
Okamoto, K. ; Takada, Kazumasa ; Kawachi, M. ; Noda, J.
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
A new all-PANDA-fibre gyroscope is reported. All components such as the coil, the phase modulator, the 3 dB coupler and the polariser were constructed by the PANDA fibres. The extinction ratio of the fibre-type polariser was 43 dB, with the insertion loss smaller than 0.04 dB when the fibre was bent by the radius R = 10 cm. For long-term behaviour, the peak-to-peak fluctuation of 0.5 deg/h was observed with 40 s integration time
Keywords :
fibre optics; gyroscopes; 3 dB coupler; all-PANDA-fibre gyroscope; coil; extinction ratio; insertion loss; peak-to-peak fluctuation; phase modulator; polariser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840297
