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Optique : Collection de la Société Française d'Optique (SFO)
Éditeur : EDP Sciences

Volume consulté : Les lasers : applications aux technologies de l'information et au traitement des matériaux
© EDP Sciences, 2002.
Document consulté : Semiconductor lasers and integrated devices. ( P. Brosson)
Cours rédigé. 53 pages. Fichier pdf (920 Ko).
DOI : 10.1051/bib-sfo:2002059
Première mise en ligne : 10/04/2002.
Téléchargement :
document accès gratuit
Résumé. A semiconductor laser is a very compact light source (0.2 mm long) in which electric current (a few mA) is converted into coherent optical power with high efficiency. In 1970, the successful Continuous Wave (CW) operation by Hayashi at Bell Labs and by Alferov at the Ioffe Institute of the Double-Heterostructure laser at room temperature coincided with the achievement of low loss (1 dB/km) optical fiber. These high improvements of both laser and optical fiber have motivated a strong excitement worldwide. Today, high performances, and reliable semiconductor lasers are available for commercial high bit rate lightwave communication systems. Their Mean Time To Failure (MTTF) is 100 years, a tremendous improvement compared with 100~hours lifetime in 1972!

A wide range of new different types of semiconductor integrated photonic components, derived from the semiconductor laser, have been demonstrated in lightwave communication systems. They include integrated modulator (electro-absorption, Mach-Zehnder), tunable laser, Semiconductor Optical Amplifier (SOA), wavelength converter, Transmitter-Receiver Device (TRD), Vertical Cavity Surface Emitting Laser (VCSEL), demultiplexer, semiconductor laser pump source for Erbium Doped Fiber Amplifier... These integrated devices are under investigation at OPTO+ with already very exciting performances, or commercially available at Alcatel Optronics.


© EDP Sciences, 2002.