The University of Southampton
University of Southampton Institutional Repository

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

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).

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.

Full text not available from this repository.

More information

Published date: 1994
Organisations: Optoelectronics Research Centre


Local EPrints ID: 78205
ISSN: 0733-8724
PURE UUID: 48fbdd07-2228-4843-89be-2b5e628effa4

Catalogue record

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

Export record



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

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.