Title :
Gain Limit in Analog Links Using Electroabsorption Modulators
Author :
Betts, G.E. ; Xie, X.B. ; Shubin, I. ; Chang, W.S.C. ; Yu, P.K.L.
Author_Institution :
Photonic Syst., Inc, Billerica, MA
Abstract :
Analog optical links using electroabsorption modulators have a gain limit caused by the photocurrent in the modulator. The gain limit results in a minimum link noise figure as well. The gain limit is due to the voltage-dependent absorption causing a voltage-dependent component to the photocurrent; the gain limit applies to a modulator that has this relationship
Keywords :
electro-optical modulation; electroabsorption; photoconductivity; analog optical links; electroabsorption modulators; gain limit; link noise figure; voltage-dependent absorption; Absorption; Equivalent circuits; Optical fiber communication; Optical losses; Optical modulation; Optical scattering; Optical transmitters; Optical waveguides; Photoconductivity; Voltage; Electroabsorption; gain; high power; modulator; optical analog link;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.883292
