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Optica, Applied optics, 29(49), p. 5626, 2010

DOI: 10.1364/ao.49.005626

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Study of the Effect of Source Signal Bandwidth on Ratiometric Wavelength Measurement

Journal article published in 2010 by Qiang Wu, Yuliya Semenova ORCID, Ginu Rajan ORCID, Pengfei Wang, Gerald Farrell ORCID
This paper is available in a repository.
This paper is available in a repository.

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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.