The use of a fiber comb filter fabricated by a CO 2 laser irradiation to improve the resolution of a ratiometric wavelength measurement system

Pengfei Wang; Gilberto Brambilla; Ming Ding; Yuliya Semenova; Qiang Wu; Gerald Farrell

doi:10.1109/JLT.2011.2171319

The use of a fiber comb filter fabricated by a CO ₂ laser irradiation to improve the resolution of a ratiometric wavelength measurement system

Pengfei Wang, Gilberto Brambilla, Ming Ding, Yuliya Semenova, Qiang Wu, Gerald Farrell

School of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

An edge filter-based ratiometric wavelength measurement system is modeled and analyzed in this paper. The results confirm that the noise of input signal and photodetectors limits 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.

Original language	English
Article number	6042317
Pages (from-to)	1143-1149
Number of pages	7
Journal	Journal of Lightwave Technology
Volume	30
Issue number	8
DOIs	https://doi.org/10.1109/JLT.2011.2171319
Publication status	Published - 2012

Keywords

Edge filter
fiber comb filter
laser irradiation
wavelength measurement

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10.1109/JLT.2011.2171319

https://arrow.tudublin.ie/engscheceart/106Licence: CC BY-NC-SA

Cite this

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abstract = "An edge filter-based ratiometric wavelength measurement system is modeled and analyzed in this paper. The results confirm that the noise of input signal and photodetectors limits 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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AU - Wang, Pengfei

AU - Brambilla, Gilberto

AU - Ding, Ming

AU - Semenova, Yuliya

AU - Wu, Qiang

AU - Farrell, Gerald

PY - 2012

Y1 - 2012

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AB - An edge filter-based ratiometric wavelength measurement system is modeled and analyzed in this paper. The results confirm that the noise of input signal and photodetectors limits 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.

KW - Edge filter

KW - fiber comb filter

KW - laser irradiation

KW - wavelength measurement

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