DOI: 10.1109/lpt.2006.881651
Abstract:
In this letter, we discuss the use of cyclic arrayed waveguide gratings in the construction of a multiplexed fiber-optic sensor system. The basic components are described and their role in interrogating sensors is discussed. The letter concludes with a proposed design for an expansive, low cost, highly maintainable system...
Excerpt:
There are a number of advantages to this approach compared to other sensor interrogation methods. If a solid state optical switch is used (e.g., Crystalatch Switch, Agiltron Inc.,Woburn, MA 01801 USA), then the system requires no moving parts, increasing its reliability...