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Noise analysis of an amplified fiber-optic recirculating-ring delay line

Record type: Article

We present the first theoretical and experimental noise analysis of a fiber-optic recirculating-ring delay line (RDL) including a doped fiber amplifier to compensate for the roundtrip loss. Both thermal-like sources and laser sources are considered. The output source induced noise (signal-signal beat noise), signal-spontaneous (s-sp) beat noise, and spontaneous-spontaneous (sp-sp) beat noise spectra for a thermal-like source are calculated from the autocorrelation function of the output detector current. It is shown that all three electrical beat noise spectra can be expressed as correlations of the output optical signal and ASE spectra. The source-induced noise will normally be the dominating noise source, but in some applications, the other noise terms also will be of importance. We use our theory to define the maximum number of recirculations in an amplified RDL with a pulsed source, where the fundamental noise floor is determined by the sp-sp beat noise.

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Citation

Kringlebotn, J.T. and Blotekjaer, K. (1994) Noise analysis of an amplified fiber-optic recirculating-ring delay line Journal of Lightwave Technology, 12, (3), pp. 573-582. (doi:10.1109/50.285340).

More information

Published date: 1994
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 78205
URI: http://eprints.soton.ac.uk/id/eprint/78205
ISSN: 0733-8724
PURE UUID: 48fbdd07-2228-4843-89be-2b5e628effa4

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:26

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Contributors

Author: J.T. Kringlebotn
Author: K. Blotekjaer

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