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Proceedings Paper

Visible and mid-IR output using a fibre laser pump source
Author(s): James Beedell; Ian Elder; Kang Kang Chen; Shaif-ul Alam; David J. Richardson; Duncan Hand
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Paper Abstract

Results are presented for generation of visible and mid-IR output using a common fibre-based laser pump source. This source comprised a master oscillator power amplifier (MOPA) configuration incorporating a semiconductor seed source. Operation in the nanosecond and picosecond range is possible via use of the appropriate seed source. The MOPA is capable of generating 100 W average power in an output beam with an M2 of 1.1. Here the MOPA was operated in the nanosecond regime, using 100 ns seed pulses at a pulse repetition frequency of 100 kHz. 40 W each of pump power was available for a frequency doubling and an OPO stage. 9.8 W of green light was generated in an output beam with an M2 of 1.2; using a degenerate PPLN OPO 12.7 W of broadband mid-IR output, with a FWHM linewidth in excess of 170 nm, was generated.

Paper Details

Date Published: 26 September 2009
PDF: 9 pages
Proc. SPIE 7483, Technologies for Optical Countermeasures VI, 748307 (26 September 2009); doi: 10.1117/12.835443
Show Author Affiliations
James Beedell, SELEX GALILEO (United Kingdom)
Ian Elder, SELEX GALILEO (United Kingdom)
Kang Kang Chen, Univ. of Southampton (United Kingdom)
Shaif-ul Alam, Univ. of Southampton (United Kingdom)
David J. Richardson, Univ. of Southampton (United Kingdom)
Duncan Hand, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 7483:
Technologies for Optical Countermeasures VI
David H. Titterton; Mark A. Richardson, Editor(s)

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