Title :
Optical Bistable Operations in AlGaAs-Based Photonic Crystal Slab Microcavity at Telecommunication Wavelengths
Author :
Tanaka, Yu ; Kawashima, Hitoshi ; Ikeda, Naoki ; Sugimoto, Yoshimasa ; Kuwatsuka, Haruhiko ; Hasama, Toshihumi ; Ishikawa, Hiroshi
Author_Institution :
Fujitsu Labs. Ltd., Atsugi
Abstract :
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
Keywords :
III-V semiconductors; Q-factor; aluminium compounds; gallium arsenide; integrated optics; micro-optics; microcavities; nonlinear optics; optical bistability; optical communication equipment; photonic crystals; two-photon spectra; 1548 nm; AlGaAs; AlGaAs-based microcavity; nonlinear transmission measurement; optical bistability; optical bistable operations; photonic crystal slab microcavity; quality-factor; resonance; telecommunication wavelengths; thermal nonlinearity; two-photon absorption; wavelength detuning; Absorption; Microcavities; Nonlinear optics; Optical bistability; Photonic crystals; Power measurement; Q factor; Resonance; Slabs; Wavelength measurement; Microcavity; optical bistability; photonic crystal (PC);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.882305
