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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 14 — Jul. 14, 2003
  • pp: 1709–1713

High power single frequency 780nm laser source generated from frequency doubling of a seeded fiber amplifier in a cascade of PPLN crystals

R. J. Thompson, M. Tu, D. C. Aveline, N. Lundblad, and L. Maleki  »View Author Affiliations


Optics Express, Vol. 11, Issue 14, pp. 1709-1713 (2003)
http://dx.doi.org/10.1364/OE.11.001709


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Abstract

We report on the generation of over 900 mW of tunable cw light at 780 nm by single pass frequency doubling of a high power fiber amplifier in a cascade of two periodically poled Lithium Niobate (PPLN) crystals. Over 500 mW is generated in the first crystal. In the limit of low pump power, we observe an efficiency of 4.6 mW/W2-cm for a single crystal, and 5.6 mW/W2-cm for a combination of two crystals, with an enhancement of the doubling efficiency observed with two crystals due to the presence of second harmonic light from the first crystal acting as a seed for the second. We have frequency locked this laser source relative to a rubidium D2 hyperfine line and demonstrated its utility in a sophisticated laser cooling apparatus.

© 2003 Optical Society of America

OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(140.3510) Lasers and laser optics : Lasers, fiber
(190.2620) Nonlinear optics : Harmonic generation and mixing

ToC Category:
Research Papers

History
Original Manuscript: June 6, 2003
Revised Manuscript: July 1, 2003
Published: July 14, 2003

Citation
R. Thompson, M. Tu, D. Aveline, N. Lundblad, and L. Maleki, "High power single frequency 780nm laser source generated from frequency doubling of a seeded fiber amplifier in a cascade of PPLN crystals," Opt. Express 11, 1709-1713 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-14-1709


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References

  1. G. D. Miller, R.G. Batchko, W. M. Tulloch, M.M. Fejer, and R.L. Byer, �??42%-efficient single-pass cw second-harmonic generation in periodically poled lithium niobate,�?? Opt. Lett. 22, 1834-1836 (1997). [CrossRef]
  2. P.A. Champert, S.V. Popov, and J.R. Taylor, �??Power scalability to 6W of 770 nm source based on seeded fibre amplifier and PPKTP,�?? Electron. Lett. 37, 1127-1129 (2001). [CrossRef]
  3. D. Fluck, and P. Gunter, �??Efficient second-harmonic generation by lens wave-guiding in KNbO3 crystals,�?? Opt. Comm. 147, 305-308 (1998). [CrossRef]
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  6. S. Peil, S. Crane, and C.R. Ekstrom, �??High power frequency doubling for the production of 780 nm light,�?? to appear in Proceedings of the Joint Meeting of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (2003).

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