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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 8, Iss. 11 — Nov. 1, 1991
  • pp: 2326–2330

Second-harmonic generation in quasi-phase-matching waveguides with a multimode pump

Sten Helmfrid and Gunnar Arvidsson  »View Author Affiliations


JOSA B, Vol. 8, Issue 11, pp. 2326-2330 (1991)
http://dx.doi.org/10.1364/JOSAB.8.002326


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Abstract

Second-harmonic generation of blue light in quasi-phase-matching waveguides is analyzed with respect to the linewidth of the pump radiation. From the coupled-wave equation, when the pump linewidth is small, the conversion efficiency is shown to be enhanced by a factor of 2, compared with a single-mode case. A degradation of 3 dB occurs for a linewidth of three times the acceptance bandwidth. We also analyze the influence of the pump spectrum on measurements when the frequency response of a waveguide is evaluated by tuning the fundamental wavelength or by measuring the spectrum of the generated second-harmonic radiation.

© 1991 Optical Society of America

History
Original Manuscript: November 13, 1990
Revised Manuscript: May 2, 1991
Published: November 1, 1991

Citation
Sten Helmfrid and Gunnar Arvidsson, "Second-harmonic generation in quasi-phase-matching waveguides with a multimode pump," J. Opt. Soc. Am. B 8, 2326-2330 (1991)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-8-11-2326

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