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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 15 — Jul. 26, 2004
  • pp: 3313–3326

Compact slanted grating couplers

Bin Wang, Jianhua Jiang, and Gregory P. Nordin  »View Author Affiliations

Optics Express, Vol. 12, Issue 15, pp. 3313-3326 (2004)

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We present a compact and efficient design for slanted grating couplers (SLGC’s) to vertically connect fibers and planar waveguides without intermediate optics. The proposed SLGC employs a strong index modulated slanted grating. With the help of a genetic algorithm-based rigorous design tool, a 20µm-long SLGC with 80.1% input coupling efficiency has been optimized. A rigorous mode analysis reveals that the phase-matching condition and Bragg condition are satisfied simultaneously with respect to the fundamental leaky mode supported by the optimized SLGC.

© 2004 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1950) Diffraction and gratings : Diffraction gratings
(230.3120) Optical devices : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices
(230.7370) Optical devices : Waveguides
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Research Papers

Original Manuscript: June 7, 2004
Revised Manuscript: July 6, 2004
Published: July 26, 2004

Bin Wang, Jianhua Jiang, and Gregory Nordin, "Compact slanted grating couplers," Opt. Express 12, 3313-3326 (2004)

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