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Applied Optics

Applied Optics


  • Vol. 38, Iss. 12 — Apr. 20, 1999
  • pp: 2500–2503

Switching of output coupling in a grating coupler by diffraction transition to the distributed Bragg reflector regime

Shogo Ura, Hironobu Moriguchi, Satoshi Kido, Toshiaki Suhara, and Hiroshi Nishihara  »View Author Affiliations

Applied Optics, Vol. 38, Issue 12, pp. 2500-2503 (1999)

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In a proposed switching grating coupler (SGC), the grating period Λ is chosen so that the SGC converts from a first-order grating coupler to a third-order distributed Bragg reflector by means of a small change in the guided mode index. The principle for switching the radiated wave power and the effective aperture of the SGC were experimentally confirmed by use of the thermo-optic effect of a polymer waveguide. The extinction of the peak intensity of the wave radiated by the SGC and collected by an external lens was measured to be 5 dB with a temperature change of 10°.

© 1999 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(130.0130) Integrated optics : Integrated optics
(230.0230) Optical devices : Optical devices

Original Manuscript: May 18, 1998
Revised Manuscript: October 26, 1998
Published: April 20, 1999

Shogo Ura, Hironobu Moriguchi, Satoshi Kido, Toshiaki Suhara, and Hiroshi Nishihara, "Switching of output coupling in a grating coupler by diffraction transition to the distributed Bragg reflector regime," Appl. Opt. 38, 2500-2503 (1999)

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