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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 10, Iss. 3 — Mar. 1, 1993
  • pp: 459–468

Theoretical study of a modulator for a waveguide second-harmonic generator

Sten Helmfrid, Kimio Tatsuno, and Kenchi Ito  »View Author Affiliations


JOSA B, Vol. 10, Issue 3, pp. 459-468 (1993)
http://dx.doi.org/10.1364/JOSAB.10.000459


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Abstract

A novel intensity modulator for second-harmonic waveguide lasers is proposed and theoretically analyzed. Noise caused by spectrum broadening in a diode-laser direct-modulation scheme is avoided in the suggested structure by using the electro-optic effect to modulate the phase mismatch in the frequency-doubling process. In the analysis the influence of waveguide parameters and electrode dimensions on the switching voltage, the output power, and the modulation bandwidth is evaluated. The results suggest that a switching voltage below the 5-V transistor-transistor logic level in digital systems is feasible and that, in a traveling-wave strip-electrode configuration, a modulation bandwidth in the gigahertz range can be obtained.

© 1993 Optical Society of America

History
Original Manuscript: April 9, 1992
Revised Manuscript: July 8, 1992
Published: March 1, 1993

Citation
Sten Helmfrid, Kimio Tatsuno, and Kenchi Ito, "Theoretical study of a modulator for a waveguide second-harmonic generator," J. Opt. Soc. Am. B 10, 459-468 (1993)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-10-3-459

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