Optically Tuned Fiber Gratings
SOUTHAMPTON UNIV (UNITED KINGDOM) OPTOELECTRONICS RESEARCH CENTRE
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This report results from a contract tasking University of Southampton as follows The contractor will investigate two areas 1 explore optically tuned fiber grating written in birefringent fiber and 2 study photorefractive and relevant nonlinear characteristics of glasses with enhanced non-linearity. In accordance with the specification, a fiber grating should be tuned within the range of 1 nanometer and dynamic rise-time shorter than 100 picosecond. The most straightforward way to achieve such a tuning ability is to use high intensity pulses in order to be above to change refractive index difference between core and cladding. In order to be able to do so one has to produce pulse intensities in order of 10exp 11 Wsq cm. The main activity within the project was concentrated around development of a diode-pumped, reliable source of high intensity pulse and has successfully demonstrated optically-tuned fiber grating.
- Fiber Optics and Integrated Optics
- Lasers and Masers