Title :
Multiple-reflection-induced intensity noise studies in a lightwave system for multichannel AM-VSB television signal distribution
Author :
Way, W.I. ; Lin, C. ; Zah, C.E. ; Curtis, L. ; Spicer, R. ; Young, W.C.
Author_Institution :
Bell Commun. Res., Red Bank, NJ, USA
fDate :
5/1/1990 12:00:00 AM
Abstract :
In a lightwave system used for transmission and distribution of multichannel AM-VSB (amplitude-modulated vestigial side-band) television signals, the dependence of multiple-reflection-induced intensity noise on laser diode linewidth, fiber jumper length, modulation index, and the number of connectors is studied. The noise is investigated for systems both with and without optical amplifiers. The requirements on the reflectance of fiber connectors/splices, the maximum number of connectors, and the usable optical amplifier gain are discussed.<>
Keywords :
amplitude modulation; light reflection; noise; optical couplers; optical fibres; optical links; optical modulation; semiconductor junction lasers; spectral line breadth; video signals; amplitude-modulated vestigial side-band; fiber connectors; fiber jumper length; fibre splices; laser diode linewidth; lightwave system; modulation index; multichannel AM-VSB television signal distribution; multiple-reflection-induced intensity noise; optical amplifier gain; optical amplifiers; reflectance; Connectors; Diode lasers; Noise level; Optical amplifiers; Optical modulation; Optical noise; Reflectivity; Semiconductor optical amplifiers; Stimulated emission; TV;
Journal_Title :
Photonics Technology Letters, IEEE
