Title :
Noise and loss characteristics of microwave direct modulated optical links
Author :
Frigyes, I. ; Habermajaer, I. ; Molnar, B.G. ; Seeds, A. ; Som, F.
Author_Institution :
Budapest Technical University, Budapest, Goldmann GY. tér 3, 1111; phone: 361 463 3689 e-mail: t-frigyes@nov.mht.bme.hu
Abstract :
Loss and noise figure of optical links transmitting microwave signals - e.g. for remote antennas in wireless communications - is dealt with. Conditions are rather general, including arbitrary matching conditions, shot noise and laser relative intensity noise. It is shown, that - alike passive microwave systems - noise figure is not proportional to the loss and theoretically it can be less than the loss. Optical power should be as low as possible - this limit being mainly determined by the required dynamic range of the system.
Keywords :
Laser noise; Microwave antennas; Noise figure; Optical fiber communication; Optical losses; Optical modulation; Optical noise; Propagation losses; Transmitting antennas; Wireless communication;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337816
