Laser-Diode Pumped Passive Q-Switched Laser with Quick Tunable Pulse-Width Capability
Teng Sun, Jian-Guo Xin** , Yu-Chen Song
School of Information and Electronics, Beijing Institute of Technology, Beijing 100081
Abstract ：A laser-diode pumped passive Q-switched Nd:YAG/Cr$^{4+}$:YAG laser with quick tunable pulse-width capability is studied and experimentally demonstrated. By focusing the auxiliary controlling laser beam onto a Cr$^{4+}$:YAG crystal and thereby changing the initial transmission of the Cr$^{4+}$:YAG crystal, laser pulses with different pulse widths can be achieved. The obtained laser pulse width is tunable in the range of 550–1492 ps with a fixed cavity length of 7 mm. The laser can be used to achieve different pulse widths between two pulses in the range of sub-nanosecond to a few tens of nanoseconds.
收稿日期: 2018-11-15
出版日期: 2019-02-24
:
42.60.By
(Design of specific laser systems)
42.60.Da
(Resonators, cavities, amplifiers, arrays, and rings)
42.60.Gd
(Q-switching)
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2019, Vol. 36 
