Title :
All-Optical Bistability in Photonic Crystal Resonators based on InGaAsP Quantum-Wells
Author :
Kim, Myung-ki ; Hwang, In-Kag ; Lee, Yong-Hee
Author_Institution :
Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Seoul
Abstract :
We demonstrate extremely low-power all-optical bistability by using photonic crystal linear resonators based on InGaAsP quantum-wells. Since the photonic crystal cavity has a high quality-factor and a small mode-volume, the photon density in the cavity is extremely high, which makes it possible to reduce the bistable power. The measured minimum bistable threshold power was 37 muW by using a fiber coupling technique, and the estimated nonlinear refractive index (n2) was -6.84times10-14 m2/W at a wavelength of 1610.8 nm which is near the resonant wavelength of quantum-well. The low-power optical bistable operations in a single photonic crystal cavity open the possibility of integrated optical devices such as an all-optical memory and switch, based on photonic crystals
Keywords :
III-V semiconductors; cavity resonators; gallium arsenide; gallium compounds; indium compounds; integrated optics; nonlinear optics; optical bistability; optical materials; optical resonators; optical testing; photonic crystals; refractive index; semiconductor device testing; semiconductor quantum wells; 1610.8 nm; 37 muW; InGaAsP; all-optical bistability; fiber coupling technique; integrated optical devices; nonlinear refractive index; photon density; photonic crystal linear cavity resonators; quality-factor; semiconductor quantum-wells; Couplings; Optical devices; Optical resonators; Photonic crystals; Power measurement; Quantum well devices; Quantum wells; Refractive index; Resonance; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.278976