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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 7 — Jul. 1, 2006
  • pp: 1323–1331

High-performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometer

Mehrdad Shokooh-Saremi, Vahid G. Ta’eed, Neil J. Baker, Ian C.M. Littler, David J. Moss, Benjamin J. Eggleton, Yinlan Ruan, and Barry Luther-Davies  »View Author Affiliations


JOSA B, Vol. 23, Issue 7, pp. 1323-1331 (2006)
http://dx.doi.org/10.1364/JOSAB.23.001323


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Abstract

We demonstrate the highest-quality Bragg gratings reported to date in chalcogenide glass rib waveguides, both in strength and apodization. A modified Sagnac interferometer is employed to write gratings in As 2 S 3 -based rib waveguides, achieving an induced refractive index modulation of the order of 10 2 and a grating transmission rejection of more than 30 dB . We obtain good agreement between experimental and theoretical results based on a transfer-matrix formulation for multilayer optical structures. In addition, we report fabrication of phase-shifted Bragg gratings, as well as an investigation of the role of birefringence, higher-order modes, and aging. Finally, grating growth dynamics are investigated by in situ monitoring during writing.

© 2006 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(350.2770) Other areas of optics : Gratings

ToC Category:
Nonlinear Optics

History
Original Manuscript: July 22, 2005
Revised Manuscript: February 15, 2006
Manuscript Accepted: February 15, 2006

Citation
Mehrdad Shokooh-Saremi, Vahid G. Ta'eed, Neil J. Baker, Ian C. M. Littler, David J. Moss, Benjamin J. Eggleton, Yinlan Ruan, and Barry Luther-Davies, "High-performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometer," J. Opt. Soc. Am. B 23, 1323-1331 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-7-1323

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