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Proceedings Paper

Fast optical correlator via thermal delay tuning in photonic crystal coupled waveguide
Author(s): Norihiro Ishikura; Jun Adachi; Toshihiko Baba
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Paper Abstract

We demonstrate a fast optical correlator using tunable delay of slow light in chirped photonic crystal coupled waveguide. Laser heating was performed for the tuning with a response speed up to several kHz. We clearly observed the crosscorrelation trace of 1.8 ps pulses. The tuning range was limited up to 8.7 ps, but will be extended to several 10 ps by long length devices. As the response is >100 times faster than conventional mechanical methods, the device is suitable for fast data mapping in optical correlation systems such as OCT.

Paper Details

Date Published: 11 February 2010
PDF: 11 pages
Proc. SPIE 7612, Advances in Slow and Fast Light III, 76120O (11 February 2010); doi: 10.1117/12.842826
Show Author Affiliations
Norihiro Ishikura, Yokohama National Univ. (Japan)
CREST, Japan Science and Technology Agency (Japan)
Jun Adachi, Yokohama National Univ. (Japan)
CREST, Japan Science and Technology Agency (Japan)
Toshihiko Baba, Yokohama National Univ. (Japan)
CREST, Japan Science and Technology Agency (Japan)


Published in SPIE Proceedings Vol. 7612:
Advances in Slow and Fast Light III
Selim M. Shahriar; Philip R. Hemmer, Editor(s)

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