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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 5 — Mar. 11, 2013
  • pp: 6076–6081

Generation of single-frequency tunable green light in a coupled ring tapered diode laser cavity

Ole Bjarlin Jensen and Paul Michael Petersen  »View Author Affiliations


Optics Express, Vol. 21, Issue 5, pp. 6076-6081 (2013)
http://dx.doi.org/10.1364/OE.21.006076


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Abstract

We report the realization of a tapered diode laser operated in a coupled ring cavity that significantly improves the coherence properties of the tapered laser and efficiently generates tunable light at the second harmonic frequency. The tapered diode laser is tunable with single-frequency output in the broad wavelength range from 1049 nm to 1093 nm and the beam propagation factor is improved from M2 = 2.8 to below 1.1. The laser frequency is automatically locked to the cavity resonance frequency using optical feedback. Furthermore, we show that this adaptive external cavity approach leads to efficient frequency doubling. More than 500 mW green output power is obtained by placing a periodically poled LiNbO3 crystal in the external cavity. The single frequency green output from the laser system is tunable in the 530 nm to 533 nm range limited by the LiNbO3 crystal. The optical to optical conversion efficiency exceeds 30%.

© 2013 OSA

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(140.3560) Lasers and laser optics : Lasers, ring
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(140.3515) Lasers and laser optics : Lasers, frequency doubled

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 3, 2013
Revised Manuscript: February 12, 2013
Manuscript Accepted: February 23, 2013
Published: March 4, 2013

Citation
Ole Bjarlin Jensen and Paul Michael Petersen, "Generation of single-frequency tunable green light in a coupled ring tapered diode laser cavity," Opt. Express 21, 6076-6081 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-5-6076


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References

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