Abstract :
Quantum dots (QDs) enable novel photonic devices like edge and surface emitting lasers, or amplifiers with dramatically improved properties and show potential for optical computers. We have presently demonstrated the extended wavelength range of InAs QDs on GaAs substrate up to 1.5μm, large modal gain, high output power, ultralow threshold current, improved temperature stability, reduced linewidth enhancement factor, high frequency operation, hybrid and passive mode-locking presently up to more than 35 GHz, cost-efficient photonic crystal, distributed feedback applications, optical feedback, ultrafast optical amplifiers. These advantages will contribute in the foreseeable future to new cost efficient lightwave communication systems (datacom, MAN, access,..) and probably optical computers.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; optical communication equipment; optical computing; optical feedback; photonic crystals; quantum dot lasers; semiconductor quantum dots; surface emitting lasers; 1.5 micron; GaAs substrate; InAs QD; InAs-GaAs; distributed feedback application; high output power; large modal gain; lightwave communication system; linewidth enhancement factor; optical computer; optical computing; optical feedback; passive mode-locking; photonic crystal; photonic devices; quantum dots; surface emitting laser; temperature stability; ultrafast optical amplifier; ultralow threshold current; Optical amplifiers; Optical computing; Optical feedback; Optical surface waves; Quantum computing; Quantum dot lasers; Semiconductor optical amplifiers; Stimulated emission; Surface emitting lasers; Ultrafast optics;
