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Intrinsic multichannel power control in cascaded power-equalizing erbium-doped fiber amplifiers

Intrinsic multichannel power control in cascaded power-equalizing erbium-doped fiber amplifiers
Intrinsic multichannel power control in cascaded power-equalizing erbium-doped fiber amplifiers
We numerically investigate the performance of a cascade of four-channel power-equalizing reflective erbium-doped fiber amplifiers (EDFAs). The EDFAs reflect different channels at different points so that different channels interact with partly different sections of the EDFA. Thus, the gain for different channels saturate partly independently. The channels can self-heal independently in the cascade, which therefore is less sensitive to harmful channel-dependent and channel-independent inter-amplifier loss variations than a cascade of normal nonequalizing EDFAs is. Moreover, the design channel-power is maintained even if channels are dropped. In contrast to a cascade of typical nonequalizing EDFAs, we can in addition control the channel power evolution via the pumping of the power-equalizing EDFAs.
1041-1135
1076-1078
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b

Nilsson, J. (2000) Intrinsic multichannel power control in cascaded power-equalizing erbium-doped fiber amplifiers. IEEE Photonics Technology Letters, 12 (8), 1076-1078. (doi:10.1109/68.868013).

Record type: Article

Abstract

We numerically investigate the performance of a cascade of four-channel power-equalizing reflective erbium-doped fiber amplifiers (EDFAs). The EDFAs reflect different channels at different points so that different channels interact with partly different sections of the EDFA. Thus, the gain for different channels saturate partly independently. The channels can self-heal independently in the cascade, which therefore is less sensitive to harmful channel-dependent and channel-independent inter-amplifier loss variations than a cascade of normal nonequalizing EDFAs is. Moreover, the design channel-power is maintained even if channels are dropped. In contrast to a cascade of typical nonequalizing EDFAs, we can in addition control the channel power evolution via the pumping of the power-equalizing EDFAs.

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Published date: August 2000

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Local EPrints ID: 50192
URI: http://eprints.soton.ac.uk/id/eprint/50192
ISSN: 1041-1135
PURE UUID: c055ba33-f6df-4994-9337-fe67be17e7d9
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

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Date deposited: 31 Jan 2008
Last modified: 20 Jul 2019 01:11

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Author: J. Nilsson ORCID iD

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