Single-frequency operation of a laser diode side-pumped Q-switched Tm:YAG laser using seeding injection technique |
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| Authors: | C Q Gao Y S Zhang M W Gao Y Zheng L Wang R Wang Z Y Wang |
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| Institution: | 1.School of Opto-Electronics,Beijing Institute of Technology,Beijing,China |
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| Abstract: | A laser diode (LD) side-pumped 2 μm single-frequency Q-switched Tm:YAG laser was demonstrated. The laser was injection seeded
by a CW single frequency Tm:YAG laser with a twisted-mode cavity. The maximum single-frequency pulse energy was 16.3 mJ, with
a pulse width of 570 ns and a pulse repetition rate of 10 Hz. The linewidth of the 2 μm single-frequency Q-switched laser
was 0.68 MHz, measured by using the optical heterodyne technique. The M
2 of the laser beam was measured to be 1.09 and 1.03 for x direction and y direction, respectively. |
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