Article ID Journal Published Year Pages File Type
1539748 Optics Communications 2008 4 Pages PDF
Abstract

We demonstrate passive Q-switching of short-length double-clad Tm3+-doped silica fiber lasers near 2 μm pumped by a laser diode array (LDA) at 790 nm. Polycrystalline Cr2+:ZnSe microchips with thickness from 0.3 to 1 mm are adopted as the Q-switching elements. Pulse duration of 120 ns, pulse energy over 14 μJ and repetition rate of 53 kHz are obtained from a 5-cm long fiber laser. As high as 530 kHz repetition rate is achieved from a 50-cm long fiber laser at ∼10-W pump power. The performance of the Q-switched fiber lasers as a function of fiber length is also analyzed.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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