Title :
Large nonlinear optical effect in an InGaAs/InAlAs multiquantum well waveguide
Author :
Kanetake, T. ; Inoue, H. ; Tanaka, Shoji ; Ishida, K.
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
All-optical refractive nonlinearity in a passive InGaAs/InAlAs multiquantum well waveguide is evaluated for TE and TM modes at 1.55 mu m wavelength and room temperature. A quarter wavelength change in the optical path length is observed at an input pump light power of 6.5 mW for 1.47 mu m wavelength in a 960 mu m long device. Nonlinear refractive index n2 is evaluated to be -1.2*106 and -0.5*10-6cm2/W for the TE and the TM modes, respectively.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; indium compounds; integrated optics; nonlinear optics; optical waveguides; refractive index; semiconductor quantum wells; 1.47 micron; 1.55 micron; 6.5 mW; 960 micron; InGaAs-InAlAs; TE modes; TM modes; multiquantum well; nonlinear optical effect; optical path length; passive MQW waveguide; pump light power; refractive nonlinearity; room temperature;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931119
