Title :
Signal generation using pulsed semiconductor lasers for application in millimeter-wave wireless links
Author :
Novak, Dalma ; Ahmed, Zaheer ; Waterhouse, Rodney B. ; Tucker, Rodney S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
fDate :
9/1/1995 12:00:00 AM
Abstract :
We investigate the generation of signals using pulsed semiconductor lasers for application in millimeter-wave (mm-wave) wireless links. The generation of mm wave harmonic frequencies in both mode-locked and gain-switched lasers is considered and a method to generate mm-wave modulated optical signals with modulation depths approaching 100% is implemented. The technique uses optical filtering to select only two optical modes in the pulsed laser spectrum that beat together in a highspeed photodiode. The application of this method to the feeding of mm-wave wireless links incorporating microstrip patch antennas is demonstrated. These optically fed links have application in indoor wireless LAN´s and optical fiber microcellular systems
Keywords :
cellular radio; indoor radio; laser beam applications; laser mode locking; microstrip antennas; optical fibre communication; optical fibre filters; optical modulation; semiconductor lasers; wireless LAN; gain-switched lasers; indoor wireless LAN; microstrip patch antennas; millimeter-wave wireless links; mm wave harmonic frequencies; mm-wave modulated optical signals; mode-locked lasers; modulation depths; optical fiber microcellular systems; optical filtering; optical modes; optically fed links; pulsed semiconductor lasers; Laser applications; Laser mode locking; Millimeter wave technology; Optical filters; Optical harmonic generation; Optical modulation; Optical pulse generation; Power harmonic filters; Semiconductor lasers; Signal generators;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
