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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 4037–4040

Diamond Raman laser with continuously tunable output from 3.38 to 3.80 μm

Alexander Sabella, James A. Piper, and Richard P. Mildren  »View Author Affiliations


Optics Letters, Vol. 39, Issue 13, pp. 4037-4040 (2014)
http://dx.doi.org/10.1364/OL.39.004037


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Abstract

We report a pulsed mid-infrared diamond Raman laser with output tuned from 3.38 to 3.80 μm through varying the optical parametric oscillator (OPO) pump wavelength. To our knowledge this is the longest reported wavelength from a solid-state Raman laser. We generated up to 80 μJ with good beam quality and 22% quantum conversion efficiency. Whilst the conversion process itself is efficient, approximately 40% of the generated Stokes light is lost to multiphonon absorption. By introducing a secondary pump beam at the anti-Stokes wavelength to initiate a seed at the Stokes wavelength through Raman resonant four-wave mixing, the laser threshold was reduced by approximately half, and the maximum output increased by 44% to 115 μJ.

© 2014 Optical Society of America

OCIS Codes
(140.3550) Lasers and laser optics : Lasers, Raman
(140.3580) Lasers and laser optics : Lasers, solid-state
(160.4330) Materials : Nonlinear optical materials
(190.5650) Nonlinear optics : Raman effect

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 10, 2014
Revised Manuscript: May 28, 2014
Manuscript Accepted: May 30, 2014
Published: June 30, 2014

Citation
Alexander Sabella, James A. Piper, and Richard P. Mildren, "Diamond Raman laser with continuously tunable output from 3.38 to 3.80 μm," Opt. Lett. 39, 4037-4040 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-13-4037

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