Fast optical correlator via thermal delay tuning in photonic crystal coupled waveguide

Norihiro Ishikura; Jun Adachi; Toshihiko Baba

doi:10.1117/12.842826

11 February 2010 Fast optical correlator via thermal delay tuning in photonic crystal coupled waveguide

Norihiro Ishikura, Jun Adachi, Toshihiko Baba

Proceedings Volume 7612, Advances in Slow and Fast Light III; 76120O (2010) https://doi.org/10.1117/12.842826
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

Citation Download Citation

Norihiro Ishikura, Jun Adachi, and Toshihiko Baba "Fast optical correlator via thermal delay tuning in photonic crystal coupled waveguide", Proc. SPIE 7612, Advances in Slow and Fast Light III, 76120O (11 February 2010); https://doi.org/10.1117/12.842826

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