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Optical Bistable Operations in AlGaAs-Based Photonic Crystal Slab Microcavity at Telecommunication Wavelengths

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7 Author(s)

We report on bistable operations in a microcavity formed on an AlGaAs-based photonic crystal slab at telecommunication wavelengths. We designed the cavity to achieve a high quality (Q)-factor, while maintaining a small mode volume; this was accomplished by removal of a single air hole. The fabricated microcavity exhibited a resonant peak with a Q-factor of 1900 at 1548 nm. In nonlinear transmission measurement, when the input power was increased, a bistable characteristic which was dependent on the detuned wavelength from the resonance was observed. The bistability was considered to originate from thermal nonlinearity due to two-photon absorption

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 19 )

Date of Publication:

Oct.1, 2006

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