Work

Large tunable fractional delay of slow light pulse and its application to fast optical correlator

Year: 2011

Type: article

Abstract: The slow light device based on photonic crystal coupled waveguide was fabricated, and a tunable delay of 72 ps was obtained for 2-ps-wide slow light pulses by local heating, which corresponds to a tunable fractional delay of 36. This value was further enhanced to 110 by compressing the output pulses through self-phase modulation and dispersion compensation in external fibers. We applied this device to optical correlator as a delay scanner, where the fractional delay determines the resolution of the delay scanning. Using this correlator, we successfully observed sub-picosecond pulses at a scan frequency up to 2 kHz, which is 100 times faster than that of mechanical scanners in conventional correlators.

Source: Optics Express

DOI: 10.1364/oe.19.024102

Authors: Norihiro Ishikura, Toshihiko Baba, Eichi Kuramochi, Masaya Notomi

Institutions: Yokohama National University, Japan Science and Technology Agency

Language: English

Topic: Photonic Crystals and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: President's Council of Cornell Women