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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 22, Iss. 3 — Mar. 1, 2005
  • pp: 591–597

Nonlinear optical properties of pulsed-laser-deposited GeAsSe films and simulation of a nonlinear directional coupler switch

A. Zakery and M. Hatami  »View Author Affiliations

JOSA B, Vol. 22, Issue 3, pp. 591-597 (2005)

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Linear and nonlinear optical properties of Ge33As12Se55 pulsed-laser-deposited (PLD) films are presented. The effect of exposure on these films is investigated in some detail. The PLD films showed photobleaching as a result of exposure to 610-nm laser light. Degenerate four-wave mixing and Z-scan techniques were used to obtain the nonlinear refractive index and absorption coefficient of germanium arsenic selenide films. Ge33As12Se55 films are highly nonlinear, and their measured n2 value was 2.2×10-13 cm2/W. The suitability of Ge33As12Se55 PLD films for ultrafast all-optical switching is also discussed. We designed and simulated a nonlinear directional coupler switch that can be made in PLD films.

© 2005 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.4330) Materials : Nonlinear optical materials
(230.1150) Optical devices : All-optical devices
(310.1860) Thin films : Deposition and fabrication

A. Zakery and M. Hatami, "Nonlinear optical properties of pulsed-laser-deposited GeAsSe films and simulation of a nonlinear directional coupler switch," J. Opt. Soc. Am. B 22, 591-597 (2005)

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