Study of the effect of source signal bandwidth on ratiometric wavelength measurement.

Abstract

We derive an analytic equation for a ratiometric wavelength measurement system and analyze the influence of the optical source signal bandwidth. Our investigation shows that in a particular optical sensing system, the higher the bandwidth of the optical signal, the better resolution the system will achieve. Experiments based on two types of optical signals (output signal of a tunable laser and a fiber Bragg grating) were carried out, and experimental results verified both the simulation results and the theoretical analysis.

DOI: 10.1364/AO.49.005626

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Cite this paper

@article{Wu2010StudyOT, title={Study of the effect of source signal bandwidth on ratiometric wavelength measurement.}, author={Qiang Wu and Yuliya Semenova and Ginu Rajan and Pengfei Wang and Gerald Farrell}, journal={Applied optics}, year={2010}, volume={49 29}, pages={5626-31} }