Abstract

A tunable continuous wave (CW) low temperature operating Tm (6 at.-%),Ho (0.6at.-%):YLF laser pumped by fiber-coupled diode laser is reported. The maximum output power is 4.16 W at 2073 nm by use of 30% output coupling, the slope efficiency is 33%. A tuning range from 2049 to 2081 nm is achieved with a birefringent filter (BF). The factors that contribute to the output power and tuning range are discussed.

© 2006 Chinese Optics Letters

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