Laser diode pumped high-energy single-frequency Er:YAG laser with hundreds of nanoseconds pulse duration |
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| Authors: | Shanghua Li Qing Wang Rui Song Fangfang Hou Mingwei Gao Chunqing Gao |
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| Affiliation: | (School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of Information Technology,Ministry of Industry and Information Technology,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | We demonstrated a high-energy single-frequency erbium-doped yttrium aluminum garnet(Er:YAG) laser. With1470 nm laser diodes(LDs) as pumping sources, single-frequency laser pulses with energy of 28.6 m J, 21.6 m J,and 15.0 m J are obtained at pulse repetition frequency of 200 Hz, 300 Hz, and 500 Hz, respectively. As far as we know, this is the highest single-frequency pulse energy with the Er:YAG gain medium. With the ring cavity design, pulse duration is maintained at hundreds of nanoseconds. This high-energy single-frequency laser with hundreds of nanoseconds pulse duration is a prospective laser source for light detection and ranging applications. |
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