A study of the effect of the position of an edge filter within a ratiometric wavelength measurement system

Qiang Wu; Pengfei Wang; Yuliya Semenova; Gerald Farrell

doi:10.1088/0957-0233/21/9/094013

A study of the effect of the position of an edge filter within a ratiometric wavelength measurement system

Qiang Wu, Pengfei Wang, Yuliya Semenova, Gerald Farrell

School of Electrical and Electronic Engineering

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

Abstract

The effect of the position of an edge filter within a ratiometric wavelength measurement system was investigated based on three cases: (1) the reflected fibre Bragg grating (FBG) signal passes through both the reference arm and the edge filter arm, (2) the reflected FBG signal is connected directly to the edge filter arm and does not pass through the reference arm, (3) the edge filter sits in line with the FBG and thus the source power is filtered prior to reaching the FBG. Both numerical simulations and experimental results show that cases 1 and 2 have similar system performance whilst case 3 is the best arrangement which offers the highest wavelength resolution.

Original language	English
Article number	094013
Journal	Measurement Science and Technology
Volume	21
Issue number	9
DOIs	https://doi.org/10.1088/0957-0233/21/9/094013
Publication status	Published - Sep 2010

Keywords

Edge filter
FBG
Ratiometric system

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title = "A study of the effect of the position of an edge filter within a ratiometric wavelength measurement system",

abstract = "The effect of the position of an edge filter within a ratiometric wavelength measurement system was investigated based on three cases: (1) the reflected fibre Bragg grating (FBG) signal passes through both the reference arm and the edge filter arm, (2) the reflected FBG signal is connected directly to the edge filter arm and does not pass through the reference arm, (3) the edge filter sits in line with the FBG and thus the source power is filtered prior to reaching the FBG. Both numerical simulations and experimental results show that cases 1 and 2 have similar system performance whilst case 3 is the best arrangement which offers the highest wavelength resolution.",

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AB - The effect of the position of an edge filter within a ratiometric wavelength measurement system was investigated based on three cases: (1) the reflected fibre Bragg grating (FBG) signal passes through both the reference arm and the edge filter arm, (2) the reflected FBG signal is connected directly to the edge filter arm and does not pass through the reference arm, (3) the edge filter sits in line with the FBG and thus the source power is filtered prior to reaching the FBG. Both numerical simulations and experimental results show that cases 1 and 2 have similar system performance whilst case 3 is the best arrangement which offers the highest wavelength resolution.

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A study of the effect of the position of an edge filter within a ratiometric wavelength measurement system

Abstract

Keywords

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