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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 6 — Mar. 15, 2014
  • pp: 1569–1572

High-energy diode-seeded nanosecond 2  μm fiber MOPA systems incorporating active pulse shaping

Z. Li, A. M. Heidt, P. S. Teh, M. Berendt, J. K. Sahu, R. Phelan, B. Kelly, S. U. Alam, and D. J. Richardson  »View Author Affiliations


Optics Letters, Vol. 39, Issue 6, pp. 1569-1572 (2014)
http://dx.doi.org/10.1364/OL.39.001569


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Abstract

We report on high-energy nanosecond-pulsed fiber master oscillator power amplifier (MOPA) systems seeded by semiconductor laser diodes at 2 μm incorporating arbitrary pulse-shaping capabilities. Two MOPA systems, one based on direct diode modulation and the second using additional electro-optic modulator (EOM) based shaping, are investigated, with up to 0.5 mJ (25 kHz) and 1.0 mJ (12.5 kHz) pulse energies achieved, respectively, for 100 ns pulses with user-defined pulse shapes. Our results indicate that further energy scaling with shaped output pulses is primarily limited by the maximum pulse peak power available from the seed laser diode and the dynamic range offered by the first generation of EOMs at 2 μm.

© 2014 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3510) Lasers and laser optics : Lasers, fiber
(250.5960) Optoelectronics : Semiconductor lasers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 26, 2013
Revised Manuscript: February 4, 2014
Manuscript Accepted: February 7, 2014
Published: March 12, 2014

Citation
Z. Li, A. M. Heidt, P. S. Teh, M. Berendt, J. K. Sahu, R. Phelan, B. Kelly, S. U. Alam, and D. J. Richardson, "High-energy diode-seeded nanosecond 2  μm fiber MOPA systems incorporating active pulse shaping," Opt. Lett. 39, 1569-1572 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-6-1569

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