Passively $Q$ -switched Ytterbium-Doped Double-Clad Fiber Laser With a Cr$^{4+}$:YAG Saturable Absorber

Abstract

A high-power and high-repetition-rate passively Q -switched ytterbium-doped single-mode double-clad fiber laser was built using a Cr4+:YAG saturable absorber (SA). Two different SAs with initial transmissions of Tomicron = 30% and Tomicron = 50% were studied. At the maximum coupled pump power of 9.8 W, an output power of 4.7 W, pulse duration of 143 ns… (More)

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