Zervas, M.N. and Laming, R.I.
Performance limits of erbium-doped fibre amplifiers due to internal Rayleigh backscattering
Conference on Optical Fiber Communication/International Conference on Integrated Optics and Optical Fiber Communication, San Jose, California, February 21-26, 1993.
Optical Society of America
(OSA Technical Digest Series, 4).
Full text not available from this repository.
For gains above ~30dB internal Rayleigh backscattering deteriorates both amplifier gain and noise figure. In high gain applications, increasing the fibre NA and dopant confinement above a critical value is shown to be detrimental.
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