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The use of a fiber comb filter fabricated by a CO2 laser irradiation to improve the resolution of a ratiometric wavelength measurement system

Wang, Pengfei, Brambilla, Gilberto, Ding, Ming, Semenova, Yuliya, Wu, Qiang and Farrell, Gerald (2012) The use of a fiber comb filter fabricated by a CO2 laser irradiation to improve the resolution of a ratiometric wavelength measurement system Journal of Lightwave Technology, 30, (8), pp. 1143-1149. (doi:10.1109/JLT.2011.2171319).

Record type: Article

Abstract

An edge filter based ratiometric wavelength measurement system is modelled and analysed in this paper. The results confirm that the noise of input signal and photodetectors limit the resolution of the wavelength measurement system. The achievable resolution is calculated for a given noise level of the input signal and photodetectors’ resolution. An improved ratiometric wavelength measurement system consisting of two fiber comb filters is presented both theoretically and experimentally, which performs coarse and fine wavelength measurements simultaneously. The resolution of the system is significantly improved to better than 5 pm while maintaining the potential for high measurement speed and wide measurable wavelength range.

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Published date: 15 April 2012
Keywords: wavelength measurement, edge filter, fiber comb filter, laser irradiation
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 336488
URI: http://eprints.soton.ac.uk/id/eprint/336488
ISSN: 0733-8724
PURE UUID: 4cd38290-96db-4f55-8c3a-b9a06750e286

Catalogue record

Date deposited: 28 Mar 2012 10:22
Last modified: 18 Jul 2017 06:07

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Contributors

Author: Pengfei Wang
Author: Ming Ding
Author: Yuliya Semenova
Author: Qiang Wu
Author: Gerald Farrell

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