Pulse delay-controlled passive Q-switched laser with tunable pulse width

Teng Sun; Jianguo Xin

doi:10.1117/1.OE.58.3.036102

8 March 2019 Pulse delay-controlled passive Q-switched laser with tunable pulse width

Teng Sun, Jianguo Xin

Author Affiliations +

Optical Engineering, Vol. 58, Issue 3, 036102 (March 2019). https://doi.org/10.1117/1.OE.58.3.036102

Abstract

We present a method for obtaining a passive Q-switched Nd : YAG / Cr^4 + : YAG laser with tunable pulse width. The output pulse width is tuned based on the delay time between the pumping pulse and trigger pulse. An auxiliary laser with a narrow pulse is used to trigger the laser pulse generation at different delay times during the pumping pulse duration. It is found that the output pulse width can be continuously adjusted from 1415 to 562 ps with an output peak power ranging from 44 to 240 kW at a fixed pumping power. The beam quality factor M² is kept <1.5 with changing of the pulse width.

Citation Download Citation

Teng Sun and Jianguo Xin "Pulse delay-controlled passive Q-switched laser with tunable pulse width," Optical Engineering 58(3), 036102 (8 March 2019). https://doi.org/10.1117/1.OE.58.3.036102

Received: 29 November 2018; Accepted: 20 February 2019; Published: 8 March 2019

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