other · Institutional Repository of Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (Xian Institute of Optics and Precision Mechanics) · 1989
Optical switch
SASAKI NOBUO
Cited by 0Abstract and details only
Abstract
PURPOSE:To accelerate a control system by providing a multiple quantum well (MQW) optical waveguide layer formed on a semiconductor substrate, a diffraction grating formed along the optical waveguide layer, and an electrode which impresses an electric field on the optical layer perpendicularly. CONSTITUTION:When a reverse bias voltage is impressed from a terminal 1, the voltage is added on the MQW optical waveguide layer 8, and the average refractive index and the absorption coefficient of the optical waveguide layer 8 are changed by a quantum confinement Stark effect. When a control pulse voltage is impressed from a terminal 2, it is superposed on the reverse bias voltage, and accordingly, the average refractive index and the absorption coefficient of the optical waveguide 8 are changed. In a state where no control pulse voltage is impressed in case of setting the reverse bias voltage and the control pulse voltage, a waveguide mode as shown in A is set, and by impressing the control pulse voltage, the average refractive index and the absorption coefficient of the optical waveguide layer 8 can be increased by the quantum confinement Stark effect, and the equivalent refractive index of whole of the optical waveguide layer is increased, thereby, the reflecting area of a narrow-band filter consisting of the diffraction grating 6 and the optical waveguide layer 8 is moved to a long wavelength side as shown in B, then, a mode goes to a reflection mode, and incident light is cut off.
Cite this paper
NOBUO, S. (1989). Optical switch. Institutional Repository of Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (Xian Institute of Optics and Precision Mechanics).
NOBUO, SASAKI. “Optical switch.” Institutional Repository of Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (Xian Institute of Optics and Precision Mechanics), 1989.
NOBUO, SASAKI. 1989. “Optical switch.” Institutional Repository of Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (Xian Institute of Optics and Precision Mechanics).
NOBUO, S. (1989) ‘Optical switch’, Institutional Repository of Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (Xian Institute of Optics and Precision Mechanics).
@misc{nobuo1989optical,
title = {{Optical switch}},
author = {NOBUO, SASAKI},
journal = {Institutional Repository of Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (Xian Institute of Optics and Precision Mechanics)},
year = {1989}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.