Title :
Traveling wave semiconductor laser amplifier detectors
Author :
Gustavsson, Mats ; Karlsson, Anders ; Thylén, Lars
Author_Institution :
Ericsson Telecom AB, Stockholm, Sweden
fDate :
4/1/1990 12:00:00 AM
Abstract :
Near-traveling-wave semiconductor laser amplifiers for amplification and detection of optical signals are discussed. Measurements of gain, responsivity, and bandwidth are presented and compared with theory. The system performance of the laser amplifier detector is evaluated by a digital transmission experiment. The importance of using low-reflectivity amplifiers with high-responsivity and weakly wavelength-dependent devices is revealed by computer simulations. The various noise contributions of the laser amplifier detector are analyzed. Expected sensitivity values are given, and it is shown that there exists an optimum amplifier gain with respect to sensitivity
Keywords :
digital signals; electron device noise; laser beam applications; optical communication equipment; reflectivity; semiconductor junction lasers; sensitivity; bandwidth; computer simulations; digital transmission experiment; gain; low-reflectivity amplifiers; noise contributions; optical signals; optimum amplifier gain; responsivity; semiconductor laser amplifier detectors; sensitivity values; travelling-wave semiconductor lasers; weakly wavelength-dependent; Laser noise; Laser theory; Optical amplifiers; Optical detectors; Optical noise; Optical sensors; Semiconductor lasers; Semiconductor optical amplifiers; Signal detection; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
