Title :
60 channel AM-VSB video transmission over 30 kilometers of optical fiber using a Nd:YAG laser and external intensity modulation
Author_Institution :
Contel Technol. Center, Chantilly, VA, USA
Abstract :
A fiber-optic broadband video transmission system has been developed which has the ability to transmit more than 60 channels of high-quality full-motion NTSC video. The fiber-optic system is designed around a high-power diode-pumped solid-state Nd:YAG laser and a custom-built lithium niobate Mach-Zehnder intensity modulator. Transmission of video signals has been achieved for a total distance of up to 32 kilometers with a carrier-to-noise ratio better than 54 dB. The author discusses system design considerations, performance characteristics, and future improvements to the system. The composite triple beat distortion was measured to be approximately -58 dBc
Keywords :
amplitude modulation; optical links; optical modulation; solid lasers; video signals; 32 km; 60 channel AM-VSB video; LiNbO3 modulator; Mach-Zehnder intensity modulator; YAG:Nd; YAl5O12:Nd; carrier-to-noise ratio; composite triple beat distortion; diode-pumped solid-state Nd:YAG laser; fiber-optic broadband video transmission; full-motion NTSC video; system design; vestigial sideband AM; Diodes; Distortion measurement; Fiber lasers; Lithium niobate; Optical design; Optical distortion; Optical fibers; Optical modulation; Solid lasers; Solid state circuits;
Conference_Titel :
Southeastcon '91., IEEE Proceedings of
Conference_Location :
Williamsburg, VA
Print_ISBN :
0-7803-0033-5
DOI :
10.1109/SECON.1991.147757
