We describe a new form of an all-fiber-optic gyroscope that utilizes a fiber laser. The Sagnac interferometer is used as a loop reflector with a modulated reflectivity to produce actively mode-locked optical pulses. The rotation-induced phase shift is obtained from the timing shift of the pulses. Experimental results compare well with the theoretical predictions.
© 1993 Optical Society of America
M. Y. Jeon, H. J. Jeong, and B. Y. Kim, "Mode-locked fiber laser gyroscope," Opt. Lett. 18, 320-322 (1993)