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Appl. Sci. 2017, 7(9), 892;

Temporally Programmable Hybrid MOPA Laser with Arbitrary Pulse Shape and Frequency Doubling

State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
Author to whom correspondence should be addressed.
Received: 6 August 2017 / Revised: 24 August 2017 / Accepted: 28 August 2017 / Published: 1 September 2017
(This article belongs to the Special Issue Solid State Lasers Materials, Technologies and Applications)
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An arbitrary pulse shape by compensating gain saturation in a solid-state Master oscillator power amplifier (MOPA) system made up of three Neodymium doped yttrium vanadate (Nd:YVO4) amplifiers is demonstrated. By investigating the amplifier dynamics in detail, car-shaped pulse shapes were obtained with compensated pulse distortion. Desired pulse shapes, such as multiple-step, square, parabolic, and Gaussian pulses, were achieved, with a high peak power level of 41.6 kW and a narrow linewidth less than 0.06 nm. In addition, through second harmonic generation (SHG), a green laser with different pulse shapes was obtained, with a maximum conversion efficiency of 42.6%. View Full-Text
Keywords: laser amplifiers; diode-pumped; pulsed laser; pulse shaping laser amplifiers; diode-pumped; pulsed laser; pulse shaping

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Nie, M.; Liu, Q.; Ji, E.; Cao, X.; Fu, X. Temporally Programmable Hybrid MOPA Laser with Arbitrary Pulse Shape and Frequency Doubling. Appl. Sci. 2017, 7, 892.

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