Q-Switched Mode-Locking by Cascaded Second-Order Nonlinearity in a Nd:YVO<sub>4</sub> Laser

A diode-pumped Q-switched mode-locked Nd:YVO<sub>4</sub> laser via a positive cascaded second-order Kerr lens using periodically poled MgO:SLT at 1064 nm was reported. Q-switched mode-locking performances, including pulse duration, output power, and bandwidth, were studied under differen...

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Bibliographic Details
Main Authors: Jia-Yang Chen, Wei-Wei Hsiang, Shou-Tai Lin
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Photonics
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Online Access:https://www.mdpi.com/2304-6732/12/3/251
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Summary:A diode-pumped Q-switched mode-locked Nd:YVO<sub>4</sub> laser via a positive cascaded second-order Kerr lens using periodically poled MgO:SLT at 1064 nm was reported. Q-switched mode-locking performances, including pulse duration, output power, and bandwidth, were studied under different pump conditions. Under 28 W quasi-CW (QCW) diode pump peak power, the measured mode-locked pulse train, Q-switched repetition rate, and Q-switched pulse duration were 18 ps, 300 kHz, and 50 ns, respectively. The highest peak power of a single pulse near the maximum of the Q-switched envelope was greater than 150 kW.
ISSN:2304-6732