O2.2 - Optimizing Performance of a Fiber Optic Sensor Interrogator by Time of Flight Measurement

M. P. Plattner, F. Hirth, M. S. Mueller, L. Hoffmann, T. C. Buck & A. W. Koch
For the purpose of structure and temperature monitoring of Ariane launchers, a new fiber optic sensor interrogation system is developed by our institute. It is based on a monolithic, modulated-grating laser diode that is capable of switching between any two output wavelengths within less than ten nanoseconds. This makes the system very versatile since different sensors within the connected measurement channels can be read out in arbitrary sequence. Therefore sampling rates of single sensors can...