Fiber optic interrogation systems for hypervelocity and low velocity impact studies

Fiber Optic Devices and Systems

Designing Fiber Optic Systems

Lasers and LEDS Electrical to optical video converters generally have a BNC coaxial cable connector at the input and a fiber optic connector on the output. In order to get the digital bits down the fiber optic cable, a light emitting device is used, onto which the digital signal is modulated. Either a laser or an LED (Light Emitting Diode) is used for this purpose. Lasers are more expensive, bu...

Switchable fiber optic laser system for high and low-strain fiber optic sensors remote multiplexing

In this paper, a 50 Km remote and switchable fiber optic sensing system based on an erbium doped fiber ring laser is proposed. The system allows the integration of different interrogation methods based on the detection of wavelength or amplitude variations of the laser. This integration is carried out by sequentially activating different ring cavities by using an optical switch. With this schem...

Optical Interferometric and Fiber Optic Techniques for High Pressure Impact Studies

Two optical techniques are experimentally investigated to measure the shock wave velocity and particle velocity in metals subjected to hyper velocity impacts. Fabry-Perot interferometer based optical system has been developed and used to measure the interface velocity profile of impacted Tantalum-Glass and Aluminum-Glass targets. Optical fibers coupled to fast photodiodes are implemented to mea...

Fiber Optic Delay Line Systems

The 5017 delay lines system, incorporates a high-speed lasers and photodiodes to provide exceptionally high performance. The unit provides high bandwidth and sensitivity to operate with large delays, plus wide dynamic range for operation over a variety of loss budgets.