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

Wu, Qiang, Wang, Pengfei, Semenova, Yuliya and Farrell, Gerald (2010) A study of the effect of the position of an edge filter within a ratiometric wavelength measurement system. Measurement Science and Technology, 21 (9). 094013. ISSN 0957-0233

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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.

Item Type:	Article
Subjects:	F300 Physics H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Ay Okpokam
Date Deposited:	26 May 2015 14:28
Last Modified:	12 Oct 2019 19:06
URI:	http://nrl.northumbria.ac.uk/id/eprint/22579

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