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Proceedings Paper

Wavelength readout system constructed of fiber Fabry-Perot tunable filter and virtual instrument
Author(s): Chengang Lü; Ruifeng Zhang; Pengfei Cheng; Kejia Li; Xing Wu; Chunfeng Ge
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Paper Abstract

The wavelength readout system reported in this paper is chiefly constructed of fiber Fabry-Perot tunable filter (FFP-TF), data acquisition card and a virtual instrument with programmable NI Labview. By combining the dynamic scanning of FFP-TF in C waveband (1520nm-1570nm) with 50nm free spectral range (FSR) and 4000 standard finesse value, the wavelength of a tested laser diode (LD) could be detected accurately, while the spectrum is displayed on line with the help of a virtual instrument to make the spectroscopy quick analysis possible. Furthermore, the scheme can also be applied for wavelength interrogation in fiber Bragg grating (FBG) sensing system. Considering the practibility and economical efficiency of such a system, it will be of great significance to adopt such a wavelength readout system in fiber sensors used for construction, mining, aerospace,etc.

Paper Details

Date Published: 28 December 2010
PDF: 6 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75441U (28 December 2010); doi: 10.1117/12.885321
Show Author Affiliations
Chengang Lü, Tianjin Univ. (China)
Ruifeng Zhang, Tianjin Univ. (China)
Pengfei Cheng, Tianjin Univ. (China)
Kejia Li, Tianjin Univ. (China)
Xing Wu, Tianjin Univ. (China)
Chunfeng Ge, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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