Extrinsic Fabry-Perot Interferometer for ITS-related communication and sensing applications: an exact analysis

Sie sind hier: Homepage > Suche

Extrinsic Fabry-Perot Interferometer for ITS-related communication and sensing applications: an exact analysis

Arya, V. / Vries, M. de / Wang, A. / Murphy, K.A. / Claus, R.O.

The extrinsic Fabry-Perot interferometer has been implemented before for the health monitoring of multi-computer communication networks. Such integrated sensor and communication system architectures can be extremely useful during the implementation of Intelligent Traffic System (ITS) traffic management centers. The same optical fiber can be modified to provide the necessary communication link, and the incorporated sensor can be used to monitor the health of the computer network, for providing a fault-tolerant architecture. However, the signal to noise ratio, minimum detection reliability, and dynamic range of the interferometer are of primary concern in such an implementation. An exact analytical and experimental evaluation of the extrinsic Fabry-Perot interferometer using Kirchhoff's diffraction formalism is presented. Because of its ease of construction, low fabrication costs, high reliability, and high resolution, this sensor may be attractive for many applications, especially for embedding in host materials, and at high temperatures, as compared to intrinsic Fabry-Perot interferometer. The obtained results are compared with the conventional two-beam interference model, and proved to correlate better with the experimental results. Future applications of this optical interferometer in other lTS applications are also discussed.