Wavelength readout system constructed of fiber Fabry-Perot tunable filter and virtual instrument

Chengang Lü; Ruifeng Zhang; Pengfei Cheng; Kejia Li; Xing Wu; Chunfeng Ge

doi:10.1117/12.885321

28 December 2010 Wavelength readout system constructed of fiber Fabry-Perot tunable filter and virtual instrument

Chengang Lü, Ruifeng Zhang, Pengfei Cheng, Kejia Li, Xing Wu, Chunfeng Ge

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75441U (2010) https://doi.org/10.1117/12.885321
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

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.

Citation Download Citation

Chengang Lü, Ruifeng Zhang, Pengfei Cheng, Kejia Li, Xing Wu, and Chunfeng Ge "Wavelength readout system constructed of fiber Fabry-Perot tunable filter and virtual instrument", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75441U (28 December 2010); https://doi.org/10.1117/12.885321

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