Title

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

RIS ID

102879

Publication Details

Q. Wu, Y. Semenova, G. Rajan, P. Wang & G. farrell, "Study of the effect of source signal bandwidth on ratiometric wavelength measurement," Applied Optics, vol. 49, (29) pp. 5626-5631, 2010.

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 thatin 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, andexperimental results verified both the simulation results and the theoretical analysis. © 2010 Optical Society of America.

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Link to publisher version (DOI)

http://dx.doi.org/10.1364/AO.49.005626