Title :
Explicit expressions for the receiver sensitivity and system penalties of optically preamplified direct-detection systems
Author :
Ruhl, F.F. ; Ayre, R.W.
Author_Institution :
Telecom Australia Res. Lab., Clayton, Vic., Australia
fDate :
3/1/1993 12:00:00 AM
Abstract :
Novel analytical closed-form expressions for the receiver sensitivity of an optically preamplified direct-detection transmission system and the system power penalties arising from excess electrical and optical filter bandwidths and finite extinction ratio are presented. An explicit analytical expression covering the combined effects of APD noise, receiver circuit noise, finite extinction ratio, electrical and optical filter bandwidths, amplifier noise, and input coupling loss is given. These results form a useful basis for the design of high sensitivity optically preamplified transmission systems.<>
Keywords :
erbium; fibre lasers; noise; optical filters; optical losses; optical receivers; sensitivity; APD noise; Er-doped fibre preamplifiers; amplifier noise; analytical closed-form expressions; excess electrical bandwidths; explicit analytical expression; finite extinction ratio; high sensitivity optically preamplified transmission systems; input coupling loss; optical filter bandwidths; optically preamplified direct-detection systems; receiver circuit noise; receiver sensitivity; system penalties; system power penalties; Bandwidth; Circuit noise; Closed-form solution; Extinction ratio; Optical filters; Optical noise; Optical receivers; Optical sensors; Signal to noise ratio; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
