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Spectral broadening due to fibre amplifier phase noise

Spectral broadening due to fibre amplifier phase noise
Spectral broadening due to fibre amplifier phase noise
Erbium-doped fibre amplifiers (EDFA) operating in the 1.5µm wavelength region will play an important role in future optical communication systems. Such devices offer large, polarisation-independent gain, low noise and high efficiency. Advanced coherent communication systems employing optical amplifiers in combination with phase or frequency modulation will allow for greatly increased system capacity and are therefore of considerable interest. However, coherent systems may suffer from spectral broadening due to phase noise introduced by the optical amplifiers and this may limit the number of amplifiers which can be concatenated in an optical link. To quantify the effect, we have measured for the first time spectral broadening due to an Er3+-doped fibre amplifier operating at 1.535µm, and have found the amount of broadening to be less than 20kHz for an amplifier operating with 17dB gain.
Cowle, G.J.
e7df859a-c0b5-429a-92a2-5a856b2d643e
Morkel, P.R.
51a7c599-5f6a-4b31-81ee-1de7b09ee0de
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Cowle, G.J.
e7df859a-c0b5-429a-92a2-5a856b2d643e
Morkel, P.R.
51a7c599-5f6a-4b31-81ee-1de7b09ee0de
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d

Cowle, G.J., Morkel, P.R., Laming, R.I. and Payne, D.N. (1990) Spectral broadening due to fibre amplifier phase noise. 2nd Bangor Communications Symposium, United Kingdom. 23 - 24 May 1990.

Record type: Conference or Workshop Item (Paper)

Abstract

Erbium-doped fibre amplifiers (EDFA) operating in the 1.5µm wavelength region will play an important role in future optical communication systems. Such devices offer large, polarisation-independent gain, low noise and high efficiency. Advanced coherent communication systems employing optical amplifiers in combination with phase or frequency modulation will allow for greatly increased system capacity and are therefore of considerable interest. However, coherent systems may suffer from spectral broadening due to phase noise introduced by the optical amplifiers and this may limit the number of amplifiers which can be concatenated in an optical link. To quantify the effect, we have measured for the first time spectral broadening due to an Er3+-doped fibre amplifier operating at 1.535µm, and have found the amount of broadening to be less than 20kHz for an amplifier operating with 17dB gain.

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More information

Published date: 1990
Venue - Dates: 2nd Bangor Communications Symposium, United Kingdom, 1990-05-23 - 1990-05-24

Identifiers

Local EPrints ID: 77479
URI: https://eprints.soton.ac.uk/id/eprint/77479
PURE UUID: 6c66a465-c378-4a97-a1fe-06530b55addb

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:32

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