Title :
The "effective" gains and noise figures of individual components in an analog photonic link
Author :
Ackerman, Edward I.
Author_Institution :
Photonic Syst., Inc., Burlington, MA, USA
Abstract :
This paper defines "effective" gains and noise figures for each component in an analog photonic link which, when inserted into the equation for the noise figure of cascaded components, yield the established link noise figure equation. Whereas the square-law electro-optic devices (modulator and photodetector) have effective gains that are - not surprisingly - dependent on RF power levels, it is found that the effective noise figures of the components that dominate the link noise figure are independent of RF power over the link\´s range of useful RF input power levels.
Keywords :
electro-optical modulation; microwave photonics; optical communication equipment; optical fibre communication; optical noise; photodetectors; RF power level; analog photonic link; effective gain; effective noise figures; electro-optical modulator; photodetector; Equations; Laser noise; Noise figure; Noise measurement; Optical fiber communication; Optical modulation; Performance gain; Photodetectors; Power lasers; Radio frequency;
Conference_Titel :
Microwave Photonics, 2003. MWP 2003 Proceedings. International Topical Meeting on
Print_ISBN :
0-7803-8691-4
DOI :
10.1109/MWP.2003.1422924
