Laser Physics

, Volume 21, Issue 4, pp 708–711

30 W output of short pulse duration nanosecond green laser generated by a hybrid fiber-bulk MOPA system

Fiber Optics

DOI: 10.1134/S1054660X11070115

Cite this article as:
He, J., Yan, P., Liu, Q. et al. Laser Phys. (2011) 21: 708. doi:10.1134/S1054660X11070115

Abstract

We reported a 30 W average output power 532 nm green laser with 5 ns pulsed duration working at 80–100 kHz generated by a hybrid MOPA system. The hybrid MOPA system consisted of a fiber amplifier and two solid-state amplifiers producing 77 W 1064 nm at pulse repetition rates of 80–100 kHz. The IR-to-green optical conversion efficiency was 44.7% at the working point of 100 kHz. The beam quality of green laser was measured better than M2 < 1.6 in both orthogonal directions. Nanosecond 532 nm lasers with short pulsed duration could be practicable in silicon-based material processing in the Photovoltaic industry.

Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • J. He
    • 1
  • P. Yan
    • 1
  • Q. Liu
    • 1
  • L. Huang
    • 1
  • H. Zhang
    • 1
  • M. Gong
    • 1
  1. 1.Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instruments and MechanologyTsinghua UniversityBeijingChina