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23 May 2005 Bragg wavelength deviation for TDM/WDM multiplexing systems
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Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623800
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium
Abstract
An analysis of the Bragg wavelength deviation generated by TDM/WDM multiplexing of large number of fiber Bragg grating (FBG) sensors has been proposed. Demodulation technique based on Fixed Spectrum Filters is compared with peak position of full wavelength spectrum. Results indicate that the fixed filter approach is less sensitive to wavelength distortion due to shadow of other sensors operating at the same nominal wavelength, allowing much larger number of FBG sensors. A simulated result show less than 1 pm deviation with up to 100 sensors at same wavelength, with 1% peak reflectivity for each sensor.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Luiz C. S. Nunes, Luiz C. G. Valente, and A. M. B. Braga "Bragg wavelength deviation for TDM/WDM multiplexing systems", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623800
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