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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 14 — Jul. 2, 2012
  • pp: 15807–15817

Photo-induced trimming of chalcogenide-assisted silicon waveguides

Antonio Canciamilla, Francesco Morichetti, Stefano Grillanda, Philippe Velha, Marc Sorel, Vivek Singh, Anu Agarwal, Lionel C. Kimerling, and Andrea Melloni  »View Author Affiliations

Optics Express, Vol. 20, Issue 14, pp. 15807-15817 (2012)

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A chalcogenide-assisted silicon waveguide is realized by depositing a thin layer of A2S3 glass onto a conventional silicon on insulator optical waveguide. The photosensitivity of the chalcogenide is exploited to locally change the optical properties of the waveguide through exposure to visible light radiation. Waveguide trimming is experimentally demonstrated by permanently shifting the resonant wavelength of a microring resonator by 6.7 nm, corresponding to an effective index increase of 1.6·10−2. Saturation effects, trimming range, velocity and temporal stability of the process are discussed in details. Results demonstrate that photo-induced treatments can be exploited for a post-fabrication compensation of fabrication tolerances, as well as to set and reconfigure the circuit response.

© 2012 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(130.3130) Integrated optics : Integrated optics materials
(230.1150) Optical devices : All-optical devices
(250.5300) Optoelectronics : Photonic integrated circuits
(160.5335) Materials : Photosensitive materials

ToC Category:
Integrated Optics

Original Manuscript: April 18, 2012
Revised Manuscript: May 28, 2012
Manuscript Accepted: May 31, 2012
Published: June 27, 2012

Antonio Canciamilla, Francesco Morichetti, Stefano Grillanda, Philippe Velha, Marc Sorel, Vivek Singh, Anu Agarwal, Lionel C. Kimerling, and Andrea Melloni, "Photo-induced trimming of chalcogenide-assisted silicon waveguides," Opt. Express 20, 15807-15817 (2012)

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