Abstract

A stable, 2.09 μm single-frequency Ho:YAG master oscillator and power amplifier (MOPA) system at a pulse repetition frequency of 1.25 kHz is demonstrated. The maximum output energy of the single-frequency injection-seeded laser is 13.76 mJ, and the corresponding pulse width is 178.9 ns. The seed laser is a continuous-wave Ho:YAG non-planar ring oscillator laser. The half-width of the pulse spectrum is measured to be 2.65 MHz by using the heterodyne technique, which is about 1.06 times Fourier transform limited.

© 2018 Optical Society of America

High-energy, stable single-frequency Ho:YAG ceramic amplifier system

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1  kHz single-frequency 2.09  μm Ho:YAG ring laser

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Single-frequency, injection-seeded Q-switched Ho:YAG ceramic laser pumped by a 1.91μm fiber-coupled LD

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