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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 30 — Oct. 20, 2012
  • pp: 7333–7338

Dynamics of photoinduced refractive index changes in As2S3 fibers

Irina V. Kabakova, Liner E. Zou, George A. Brawley, Catalin Florea, Ishwar D. Aggarwal, Jasbinder S. Sanghera, Eric C. Mägi, Enbang Li, and Benjamin J. Eggleton  »View Author Affiliations

Applied Optics, Vol. 51, Issue 30, pp. 7333-7338 (2012)

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We investigate the dynamics of photoinduced index changes in chalcogenide As 2 S 3 fibers. Using a novel phase sensitive technique for measuring the photoinduced index change, we find that the index evolution is a two-stage process: it consists of a fast reduction and a subsequent slow increase in the refractive index. We show that the index change depends strongly on the beam intensity with both positive and negative changes possible. These findings can have application in design and fabrication of photoinduced devices such as Bragg gratings and photonic cavities.

© 2012 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(060.3738) Fiber optics and optical communications : Fiber Bragg gratings, photosensitivity
(160.5335) Materials : Photosensitive materials

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: July 11, 2012
Manuscript Accepted: September 13, 2012
Published: October 17, 2012

Irina V. Kabakova, Liner Zou, George A. Brawley, Catalin Florea, Ishwar D. Aggarwal, Jasbinder S. Sanghera, Eric C. Mägi, Enbang Li, and Benjamin J. Eggleton, "Dynamics of photoinduced refractive index changes in As2S3 fibers," Appl. Opt. 51, 7333-7338 (2012)

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