Title :
Multichannel AM-VSB television signal transmission using an erbium-doped optical fiber power amplifier
Author :
Way, W.I. ; Choy, M.M. ; Yi-Yan, A. ; Andrejco, M. ; Saifi, M. ; Lin, C.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
The use of an erbium-doped optical fiber power amplifier in a multichannel amplitude-modulated vestigial-sideband CATV transmission system for potential subscriber loop applications is discussed. Using a color-center laser pump at 1.48 mu m, a fiber-to-fiber gain of 11.5 dB (at 1.539 mu m), which is 10 dB compressed from the small-signal gain, and a total system power margin of 15 dB were achieved. No intermodulation distortion was introduced by the fiber amplifier. The received video SNR of 40-46 dB was limited by the linearity of the distributed-feedback laser diode used.<>
Keywords :
amplitude modulation; cable television; community antenna television; erbium; fibre optics; optical links; solid lasers; 1.48 micron; 1.539 micron; 11.5 dB; Er doped optical fiber power amplifier; color-center laser pump; distributed-feedback laser diode; fiber-to-fiber gain; intermodulation distortion; multichannel amplitude modulated vestigial sideband CATV transmission system; received video SNR; small-signal gain; subscriber loop applications; total system power margin; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Laser noise; Optical fiber amplifiers; Optical fiber subscriber loops; Optical fibers; Power amplifiers; Semiconductor optical amplifiers; Subscriber loops; TV;
Journal_Title :
Photonics Technology Letters, IEEE
