Abstract
A 2.09 μm injection-seeded single-frequency Ho:YAG laser resonantly pumped by a 1.91 μm laser diode is demonstrated for the first time. The seed laser is a continuous wave (CW) Ho:YAG non-planar ring oscillator. 15.15 mJ single-frequency output energy is obtained from the injection-seeded Q-switched Ho:YAG laser, with a pulse repetition rate of 200 Hz and a pulse width of 109 ns. The half-width of the pulse spectrum is measured to be 4.19 MHz by using the heterodyne technique. The fluctuation of the center frequency of the single-frequency pulses is 1.52 MHz (root mean square (RMS)) in 1 h.
Original language | English |
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Article number | 095003 |
Journal | Laser Physics Letters |
Volume | 13 |
Issue number | 9 |
DOIs | |
Publication status | Published - Sept 2016 |
Keywords
- Ho:YAG laser
- Q-switch
- injection-seed
- solid-state lasers