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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 25 — Dec. 13, 2004
  • pp: 6270–6277

Small core rib waveguides with embedded gratings in As2Se3 glass

N. Ponnampalam, R. G. DeCorby, H. T. Nguyen, P. K. Dwivedi, C. J. Haugen, J. N. McMullin, and S. O. Kasap  »View Author Affiliations

Optics Express, Vol. 12, Issue 25, pp. 6270-6277 (2004)

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Low-loss shallow-rib waveguides were fabricated using As2Se3 chalcogenide glass and polyamide-imide polymer. Waveguides were patterned directly in the As2Se3 layer by photodarkening followed by selective wet etching. Theory predicted a modal effective area of 3.5–4 µm2, and this was supported by near-field modal measurements. The Fabry-Perot technique was used to estimate propagation losses as low as ~0.25 dB/cm. First-order Bragg gratings near 1550 nm were holographically patterned in some waveguides. The Bragg gratings exhibited an index modulation on the order of 0.004. They were used as a means to assess the modal effective indices of the waveguides. Small core As2Se3 waveguides with embedded Bragg gratings have potential for realization of all-optical Kerr effect devices.

© 2004 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.3120) Integrated optics : Integrated optics devices
(160.2750) Materials : Glass and other amorphous materials
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Research Papers

Original Manuscript: November 12, 2004
Revised Manuscript: December 2, 2004
Published: December 13, 2004

N. Ponnampalam, R. DeCorby, H. Nguyen, P. Dwivedi, C. Haugen, J. McMullin, and S. Kasap, "Small core rib waveguides with embedded gratings in As2Se3 glass," Opt. Express 12, 6270-6277 (2004)

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