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Electrical and electronic engineering
An all-fiber ratiometric wavelength monitor for optical wavelength measurement is proposed and is investigated theoretically and experimentally. Two edge filters with opposite slope spectral responses based on singlemode-multimode-singlemode (SMS) fiber structures are developed. A ratiometric wavelength measurement system employing the developed SMS edge filters demonstrates a high discrimination range of 20.41 dB and a potential wavelength measurement resolution of 10 pm over a wavelength range from 1530 to 1560 nm.
Hatta, A., Farrell, G., Wang, Q., Rajan, G., Wang, P., Semenova, Y.:Ratiometric Wavelength Monitor Based on Singlemode-Multimode-Singlemode Fiber Structure.Microwave and Optical Technology Letters, Vol.50, no.20, 2008, pp.3036-3039