Title :
Problem of Insertion Power Loss in Fiber Links for Antenna Signal Transmission
Author :
Bratchikov, A.N. ; Dorofeev, A.V. ; Pantelyuk, N.A.
Author_Institution :
Moscow Aviation Inst., Moscow
Abstract :
Power loss of microwave and millimeter wave antenna signals after their transmission through fiber links with intensity modulation and direct detection (IMDD) on the basis of both direct modulation (IMDD-DM) of laser diode and external modulation (IMDD-EM) of laser light in modulator are estimated. Noise figure dependencies at the output of microwave IMDD fiber links are calculated and illustrated graphically. Methods are described to completely solve the problem of big insertion loss, to achieve not only loss compensation, but to make IMDD fiber links with intrinsic gain of input microwave and millimeter wave signal without additional optical or electronic amplifiers. Component specifications to solve mentioned problems are formulated.
Keywords :
microwave antennas; microwave photonics; millimetre wave antennas; optical communication equipment; optical fibre communication; optical fibre losses; optical links; optical modulation; semiconductor lasers; direct detection; direct modulation; external modulation; fiber links; insertion loss; intensity modulation; laser diode; loss compensation; microwave antenna signals; millimeter wave antenna signals; Diode lasers; Fiber lasers; Insertion loss; Intensity modulation; Microwave antennas; Millimeter wave technology; Optical fiber losses; Optical modulation; Propagation losses; Transmitting antennas;
Conference_Titel :
Microwave & Telecommunication Technology, 2007. CriMiCo 2007. 17th International Crimean Conference
Conference_Location :
Crimea
Print_ISBN :
978-966-335-012-7
DOI :
10.1109/CRMICO.2007.4368780
