5 October 2009 Characteristics of hetero-core spliced fiber optics in simultaneous utilization of humidity sensing and data communications
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Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75031H (2009) https://doi.org/10.1117/12.835052
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom
Abstract
We aim at composing a novel remote monitoring system of the water level and soil humidity under the natural environment with a hetero-core spliced fiber optic chemical sensor inserted into an existing communication line. This paper demonstrates the fusion characteristics of an optical communications and a humidity sensing by means of a hetero-core spliced fiber optic sensor that has been highly-vaunted from the practical perspective. However, this humidity sensor leaks light and attenuates the optical signal power of a communication wavelength by intent on sensing use. From the communications standpoint, this may lead to decrease intensity of optical signals sent to the receiver and increase a bit error. In other words, there may be a trade-off relationship between communications quality and measuring accuracy. We have proved the possibility of the co-existence of communication signals and measuring functions by finding out the effect of humidity sensing on the communications is the optical loss and modal dispersion.
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Norihiko Shinomiya, Norihiko Shinomiya, Emiko Kondo, Emiko Kondo, Shohei Akita, Shohei Akita, Michiko Nishiyama, Michiko Nishiyama, Hiroyuki Sasaki, Hiroyuki Sasaki, Kazuhiro Watanabe, Kazuhiro Watanabe, } "Characteristics of hetero-core spliced fiber optics in simultaneous utilization of humidity sensing and data communications", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75031H (5 October 2009); doi: 10.1117/12.835052; https://doi.org/10.1117/12.835052
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