Photonic-chip-based tunable slow and fast light via stimulated Brillouin scattering
Date
2012-03-01
Authors
Pant, Ravi
Byrnes, Adam
Poulton, Christopher G
Li, Enbang
Madden, Steve
Luther-Davies, Barry
Eggleton, Benjamin J
Choi, Duk-Yong
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Optical Society of America
Abstract
We report the first (to our knowledge) demonstration of photonic chip based tunable slow and fast light via stimulated Brillouin scattering. Slow, fast, and negative group velocities were observed in a 7 cm long chalcogenide (As2S3) rib waveguide with a group index change ranging from ∼−44 to +130, which results in a maximum delay of ∼23 ns at a relatively low gain of ∼23 dB. Demonstration of large tunable delays in a chip scale device opens up applications such as frequency sensing and true-time delay for a phased array antenna, where integration and delays ∼10 ns are highly desirable.
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Keywords
photonic-chip-based, tunable, slow, fast, light, stimulated, Brillouin, scattering
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Optics Letters 37.5 (2012):969-971
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Journal article
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