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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 3 — Feb. 10, 2014
  • pp: 3325–3333

Highly efficient picosecond diamond Raman laser at 1240 and 1485 nm

Aravindan M. Warrier, Jipeng Lin, Helen M. Pask, Richard P. Mildren, David W. Coutts, and David J. Spence  »View Author Affiliations


Optics Express, Vol. 22, Issue 3, pp. 3325-3333 (2014)
http://dx.doi.org/10.1364/OE.22.003325


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Abstract

We present a highly efficient picosecond diamond Raman laser synchronously-pumped by a 4.8 W mode-locked laser at 1064 nm. A ring cavity was adopted for efficient operation. With a low-Q cavity for first-Stokes 1240 nm, we have achieved 2.75 W output power at 1240 nm with 59% overall conversion efficiency. The slope efficiency tended towards 76% far above the SRS threshold, approaching the SRS quantum limit for diamond. A high-Q first-Stokes cavity was employed for second-Stokes 1485 nm generation through the combined processes of four-wave mixing and single-pass stimulated Raman scattering. Up to 1.0 W of second-stokes at 1485 nm was obtained, corresponding to 21% overall conversion efficiency. The minimum output pulse duration was compressed relative to the 15 ps pump, producing pulses as short as 9 ps for 1240 nm and 6 ps for 1485 nm respectively.

© 2014 Optical Society of America

OCIS Codes
(140.3550) Lasers and laser optics : Lasers, Raman
(140.3560) Lasers and laser optics : Lasers, ring
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.7090) Lasers and laser optics : Ultrafast lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 17, 2013
Revised Manuscript: January 19, 2014
Manuscript Accepted: January 19, 2014
Published: February 4, 2014

Citation
Aravindan M. Warrier, Jipeng Lin, Helen M. Pask, Richard P. Mildren, David W. Coutts, and David J. Spence, "Highly efficient picosecond diamond Raman laser at 1240 and 1485 nm," Opt. Express 22, 3325-3333 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-3-3325


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