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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 2 — Feb. 1, 2006
  • pp: 265–275

Analysis of nonlinear wavelength conversion system for a red–green–blue laser-projection source

Edith Innerhofer, Felix Brunner, Sergio V. Marchese, Rüdiger Paschotta, Gunnar Arisholm, Sunao Kurimura, Kenji Kitamura, Takeshi Usami, Hiromasa Ito, and Ursula Keller  »View Author Affiliations


JOSA B, Vol. 23, Issue 2, pp. 265-275 (2006)
http://dx.doi.org/10.1364/JOSAB.23.000265


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Abstract

We analyze the physical processes in the nonlinear wavelength conversion stages of a recently demonstrated red–green–blue (RGB) laser source, which generated 8 W of average power in each color. The system is based on an infrared femtosecond mode-locked laser and contains a frequency doubler, a parametric generator, a parametric amplifier, and two sum-frequency conversion stages. It does not require any resonant cavities, external laser amplifiers, or nonlinear crystals operated at elevated temperatures; therefore it appears to be more practical than other previously demonstrated RGB laser sources. However, the optimization of the overall system is nontrivial, because pump depletion, birefringence, and temporal walk-off in the first conversion stages lead to spatial and temporal distortion of the interacting beams in the subsequent nonlinear conversion stages. This leads to the interaction of spatially and temporally distorted beams in the later conversion stages. By using a numerical simulation of the nonlinear conversion processes based on a Fourier-space method in one temporal and two transverse spatial dimensions, we can fully take into account these effects. We analyze and discuss the physical effects in the different conversion stages and describe the optimization of the overall system performance.

© 2006 Optical Society of America

OCIS Codes
(140.4050) Lasers and laser optics : Mode-locked lasers
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 27, 2005
Revised Manuscript: September 16, 2005
Manuscript Accepted: September 16, 2005

Citation
Edith Innerhofer, Felix Brunner, Sergio V. Marchese, Rüdiger Paschotta, Gunnar Arisholm, Sunao Kurimura, Kenji Kitamura, Takeshi Usami, Hiromasa Ito, and Ursula Keller, "Analysis of nonlinear wavelength conversion system for a red-green-blue laser-projection source," J. Opt. Soc. Am. B 23, 265-275 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-2-265

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