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Reduction of backscattering-induced noise by ternary phase shift keying in resonator micro-optic gyro integrated on silica planar lightwave circuit

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3 Author(s)
K. Suzuki ; Dept. of Electron. Eng., Tokyo Univ., Japan ; K. Takiguchi ; K. Hotate

The authors propose a method that uses ternary phase shift keying modulation to eliminate backscattering-induced noise in a resonator micro-optic gyro (R-MOG) integrated onto a silica planar lightwave circuit (PLC). Ternary modulation overcomes limitations on the degree of elimination possible caused by the narrow bandwidth of the thermo-optic phase modulator on PLC, the bandwidth of which is limited to 1 kHz.

Published in:

Electronics Letters  (Volume:35 ,  Issue: 13 )