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  • Vol. 23, Iss. 16 — Aug. 15, 1998
  • pp: 1298–1300

Simultaneous spatial and temporal walk-off compensation in frequency-doubling femtosecond pulses in β-BaB2O4

Russell J. Gehr, Mark W. Kimmel, and A. V. Smith  »View Author Affiliations


Optics Letters, Vol. 23, Issue 16, pp. 1298-1300 (1998)
http://dx.doi.org/10.1364/OL.23.001298


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Abstract

We experimentally demonstrate the benefits of simultaneous compensation of spatial and temporal walk-off in frequency doubling of 800-nm 250-fs pulses, using three active and two compensating β-BaB<sub>2</sub>O<sub>4</sub> crystals. The compensating crystals reverse both birefringent and group-velocity walk-off, resulting in a factor-of-4.5 improvement in doubling efficiency relative to one of the active crystals while maintaining the short pulse duration and the symmetric spatial profile that are characteristic of the single crystal.

© 1998 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

Citation
Russell J. Gehr, Mark W. Kimmel, and A. V. Smith, "Simultaneous spatial and temporal walk-off compensation in frequency-doubling femtosecond pulses in β-BaB2O4," Opt. Lett. 23, 1298-1300 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-16-1298


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