Title :
A survey of optical techniques with an emphasis on frequency control (phase stability) aspects
Author_Institution :
Hughes Res. Lab., Malibu, CA, USA
Abstract :
An introductory survey of fiber-optic techniques for signal transmission is given. The intensity modulation/direct detection technique, the most widely used approach at present, is discussed. A brief discussion of the erbium-doped fiber-optical amplifier and its impact on long-distance signal transmission is given, followed by a discussion on a coherent technique and its requirements on laser linewidth and frequency stability. The author also discusses recent developments in narrow linewidth lasers, laser frequency stabilization, and generation of microwave signals using coherent mixing of two laser beams
Keywords :
erbium; fibre lasers; frequency control; laser frequency stability; optical communication equipment; Er doped fibre optical amplifiers; IM/DD techniques; coherent communication technique; coherent mixing; fiber-optic techniques; frequency control; frequency stability; generation of microwave signals; intensity modulation/direct detection technique; laser frequency stabilization; laser linewidth; long-distance signal transmission; narrow linewidth lasers; phase stability; requirements; signal transmission; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Frequency; Intensity modulation; Laser stability; Masers; Optical fiber amplifiers; Optical mixing; Optical modulation; Stimulated emission;
Conference_Titel :
Frequency Control, 1991., Proceedings of the 45th Annual Symposium on
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-87942-658-6
DOI :
10.1109/FREQ.1991.145948
