A Sagnac interferometer (SI) has been constructed with a mode-locked Nd3+:YAG laser as its source. The advantages in pulsed laser interferometry of using a SI over a Mach-Zehnder interferometer are analyzed. The autostability property of SI is experimentally demonstrated. Applications of an SI to light-induced index of refraction change measurements and to the picosecond optical switching are discussed. Experimental results are presented.
© 1986 Optical Society of America
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