Virtual Individual Combatant Trainer for Embedded Reherasal (VICTER)

Not Available This program develops a novel fiber optic grating depth/pressure sensor that has greatly improved sensitivity relative to earlier state of the art fiber optic grating pressure sensors. Simple wavelength division multiplexing techniques may be used to support approximately 20 fiber optic grating depth/pressure sensors on a single fiber extending to at least 10 km with arbitrary placement. Time division multiplexing could be used in combination with wavelength division multiplexing to increase the number of fiber optic grating depth/pressure sensors that could be supported on a single line toward the range of 50 to 100. The Blue Road Research approach offers the simultaneous measurement of temperature and fundamental temperature compensation that is orders of magnitude better than that proposed in the literature for other fiber grating and fiber etalon based approaches. This for the first time enables the prospect of very high pressure resolution necessary for practical towed array depth/pressure sensors without extraordinary precision from fiber temperature sensors.