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Applied Optics

Applied Optics


  • Vol. 42, Iss. 8 — Mar. 10, 2003
  • pp: 1520–1525

Active optical interconnect based on liquid-crystal grating

Ichiro Fujieda, Osamu Mikami, and Atsushi Ozawa  »View Author Affiliations

Applied Optics, Vol. 42, Issue 8, pp. 1520-1525 (2003)

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We propose a transparent plate of a liquid-crystal grating to be used as a light guide for optical interconnection. To this end, we are empowering the connection itself with active functions, such as switching, wavelength division, power adjustment, etc. In experiments, we built a grating based on in-plane switching. It contains vertically-aligned nematic liquid-crystal molecules between a glass plate with a high refractive index (light guide) and another glass plate with a pair of interdigitated electrodes. Entering a TM wave from an edge of the light guide, we have demonstrated that the activation of diffraction and intensity adjustment for the guided light are both possible. Because a TE wave is barely diffracted, the device also exhibits polarization division capability.

© 2003 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.1950) Optical devices : Diffraction gratings
(230.2090) Optical devices : Electro-optical devices
(230.3720) Optical devices : Liquid-crystal devices

Original Manuscript: June 12, 2002
Revised Manuscript: October 9, 2002
Published: March 10, 2003

Ichiro Fujieda, Osamu Mikami, and Atsushi Ozawa, "Active optical interconnect based on liquid-crystal grating," Appl. Opt. 42, 1520-1525 (2003)

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