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Applied Optics

Applied Optics


  • Vol. 43, Iss. 25 — Sep. 1, 2004
  • pp: 4922–4928

Type II quasi-phase-matched sum-frequency mixing of diode lasers in KTiOPO4 with broad spectral and temperature acceptance bandwidths

Hajime Sakata, Yukio Furukawa, and Takayuki Yagi  »View Author Affiliations

Applied Optics, Vol. 43, Issue 25, pp. 4922-4928 (2004)

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A 1500-nm-band laser signal is upconverted to the mid-visible part of the spectrum by quasi-phase matched, sum-frequency generation with an 800-nm-band laser pump in a periodically poled KTiOPO4. For an appropriate combination of the two fundamental wavelengths, an acceptance bandwidth of 40–60 nm cm for the pump wavelength is attainable simultaneously with a temperature acceptance bandwidth of 60–70 °C cm in an angularly noncritical condition. Using a distributed feedback laser at 1590 nm and a Fabry-Perot laser at 807 nm, we demonstrate a temperature tolerance as large as 60 °C with a 10-mm-long crystal.

© 2004 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.7300) Lasers and laser optics : Visible lasers
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing

Original Manuscript: November 16, 2003
Revised Manuscript: April 30, 2004
Manuscript Accepted: May 17, 2004
Published: September 1, 2004

Hajime Sakata, Yukio Furukawa, and Takayuki Yagi, "Type II quasi-phase-matched sum-frequency mixing of diode lasers in KTiOPO4 with broad spectral and temperature acceptance bandwidths," Appl. Opt. 43, 4922-4928 (2004)

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