Abstract
We report a high-average-power acousto-optic(AO)Q-switched intracavity frequency-doubled red laser based on a high-efficiency light-emitting-diode(LED)pumped two-rod Nd,Ce∶YAG laser module.Under quasi-continuous wave operation conditions,a maximum output power of 1319.08 nm wavelength was achieved at 11.26 W at a repetition rate of 100 Hz,corresponding to a maximum optical efficiency of 13.9％and a slope efficiency of 17.9％.In the active Q-switched regime,the pulse energy of the laser was as high as 800 μJ at a repetition rate of 10 kHz with a pulse width of 1.5 μs.Under non-critical phase-matched KTP crystal conditions,an average power of 2.03 W of 658.66 nm through intracavity frequency-doubling was obtained at a repetition frequency of 10 kHz with a duration of 1.3 μs,and the M2 factor was measured to be about 5.8.To the best of our knowledge,this is the highest average power of an LED-pumped AO Q-switched 1319 nm laser and intracavity frequency-doubled red laser reported to date.
基金项目
Nanjing University of Posts and Telecommunications Foundation(JUH219002)
Nanjing University of Posts and Telecommunications Foundation(JUH219007)
Key Laboratory of Functional Crystals and Laser Technology,TIPC,CAS Foundation(FCLT 202201)
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