Title :
Optical amplifier noise figure reduction for optical single-sideband signals
Author :
Griffin, Robert A. ; Lane, P.M. ; O´Reilly, J.J.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
fDate :
10/1/1999 12:00:00 AM
Abstract :
This paper analyzes the amplification of optical single-sideband signals, highlighting the significance of the optical signal bandwidth in determining signal-amplified spontaneous emission (ASE) beat noise. It predicts that an electrical noise figure of one may be realized for single-sideband signals using appropriate optical filtering. It verifies noise figure reduction experimentally, demonstrating an electrical noise figure of 1.1× the spontaneous emission factor of the amplifier, which is 2.6 dB below the limit for conventional intensity modulated signals
Keywords :
optical fibre amplifiers; optical fibre communication; optical noise; spontaneous emission; superradiance; telecommunication signalling; electrical noise figure; intensity modulated signals; optical amplifier noise figure reduction; optical filtering; optical signal bandwidth; optical single-sideband signals; signal-amplified spontaneous emission beat noise; single-sideband signals; spontaneous emission factor; Bandwidth; Noise figure; Optical amplifiers; Optical filters; Optical modulation; Optical noise; Semiconductor optical amplifiers; Signal analysis; Spontaneous emission; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
