Optical amplifier noise figure reduction for optical single-sideband signals

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 signal...

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Bibliographic Details
Published in:Journal of lightwave technology 1999-10, Vol.17 (10), p.1793-1796
Main Authors: Griffin, R.A., Lane, P.M., O'Reilly, J.J.
Format: Article
Language:English
Subjects:
Amplifiers
Applied sciences
Bandwidth
Electrical noise
Exact sciences and technology
Filtering
Noise
Noise figure
Noise levels
Optical amplifiers
Optical communication
Optical filters
Optical modulation
Optical noise
Reduction
Semiconductor optical amplifiers
Signal analysis
Spontaneous emission
Stimulated emission
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary: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/spl times/ the spontaneous emission factor of the amplifier, which is 2.6 dB below the limit for conventional intensity modulated signals.
ISSN:0733-8724
1558-2213
DOI:10.1109/50.793752