Premium
Effect of SNR of input signal on the accuracy of a ratiometric wavelength measurement system
Author(s) -
Rajan Ginu,
Wang Qian,
Farrell Gerald,
Semenova Yuliya,
Wang Pengfei
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22328
Subject(s) - signal (programming language) , wavelength , microwave , signal to noise ratio (imaging) , optics , filter (signal processing) , enhanced data rates for gsm evolution , physics , range (aeronautics) , carrier to noise ratio , accuracy and precision , materials science , telecommunications , computer science , electrical engineering , engineering , composite material , programming language , quantum mechanics
The impact of a change in signal‐to‐noise ratio (SNR) of the input signal on the accuracy of a ratiometric wavelength measurement system is studied. The variation of the output ratio of the system due to the change in SNR of the input signal is modeled and the experimental investigation has been carried out, and both indicate that the accuracy is influenced significantly by variations in the SNR of the input signal. The demonstration example shows a wavelength shift of 0.055 nm when the SNR of the input signal varies from 47 dB to 42 dB (the measurable range is from 1500 nm to 1600 nm and the edge filter used has a slope of 0.15 dB/nm). © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1022–1024, 2007; Published online in Wiley InterScience (www.interscience.wiley.com).DOI 10.1002/mop.22328