A newly developed Q-switched Er:glass laser with a long pulse length, suitable for fiber-fault location, is described. A specially prepared athermal rod has made it possible to operate at a 5-Hz repetition rate. A feedback-stabilized Q-switching method involving fluorescence monitoring has been applied to this three-level laser system. A ±3% power stability (standard deviation) has been obtained for a 1-µsec pulse with a 2-mJ output energy.
© 1984 Optical Society of America
Yukio Morishige, Shunji Kishida, Kunihiko Washio, Hisayoshi Toratani, and Masataka Nakazawa, "Output-stabilized high-repetition-rate 1.545-µm Q-switched Er:glass laser," Opt. Lett. 9, 147-149 (1984)