Title :
Realization of all-optical wavelength converter based on directionally coupled semiconductor optical amplifiers
Author :
Byongjin Ma ; Nakano, Y.
Author_Institution :
Dept. of Electron. Eng., Tokyo Univ., Japan
Abstract :
We propose a novel all-optical wavelength converter based on directionally coupled (DC) semiconductor optical amplifiers (SOA) and simulate its characteristics using a simple model to find out such advantages as extinction enhancement and digital response. We then fabricate devices in the 1.55 μm band, and successfully demonstrate the wavelength conversion operation with the above-mentioned advantages. Very compact size and no need of active/passive integration are other significant merits of DC SOA´s.
Keywords :
optical directional couplers; optical transmitters; optical wavelength conversion; semiconductor optical amplifiers; wavelength division multiplexing; 1.55 /spl mu/m band; 1.55 mum; WDM; all-optical wavelength converter; digital response; directionally coupled semiconductor optical amplifiers; extinction enhancement; very compact size; wavelength conversion operation; Directional couplers; Extinction ratio; Optical coupling; Optical interferometry; Optical waveguides; Optical wavelength conversion; Probes; Propagation constant; Refractive index; Semiconductor optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
