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Optics Letters

Optics Letters


  • Vol. 27, Iss. 18 — Sep. 15, 2002
  • pp: 1628–1630

Simultaneous second-harmonic generation with two orthogonal polarization states in periodically poled KTP

V. Pasiskevicius, S. J. Holmgren, S. Wang, and F. Laurell  »View Author Affiliations

Optics Letters, Vol. 27, Issue 18, pp. 1628-1630 (2002)

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Simultaneous generation of second-harmonic light with orthogonal polarizations in the blue spectral region is demonstrated by use of typeII and typeI quasi-phase matching for the nonlinear coefficients d33 , d24 , and d32 in periodically poled KTP. The second-harmonic power ratio in both polarization states can be tuned by the fundamental polarization and (or) the periodically poled KTP temperature. Femtosecond pulse frequency-doubling efficiencies of as much as 39.5% W -1 and 8.1% W -1 are demonstrated in 7-mm periodically poled KTP for typeI and typeII processes, respectively. The efficiency limitations caused by various effects of the group-velocity mismatch are discussed.

© 2002 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing

V. Pasiskevicius, S. J. Holmgren, S. Wang, and F. Laurell, "Simultaneous second-harmonic generation with two orthogonal polarization states in periodically poled KTP," Opt. Lett. 27, 1628-1630 (2002)

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