All-Optical Switching Based on Induced Wavelength Shift in a CDSSE-Doped Fiber.
Final rept. Jun 95-Jun 96,
CONNECTICUT UNIV STORRS
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A non-linear, doped spaciality fiber was fabricated consisting of cadmium sulfur selenide CdSSe. The fiber had a core composed of a Schott Glass material RG630. The RG630 is a CdSSeglass composite material in which the semiconductor is in the form of nano-spherical particles with average diameter of 3.7 nm and occupies a volume fraction of 0.32. Previous theoretical modeling indicated that such a semiconductor doped fiber would have a nonlinear refractive index higher than ordinary silica fiber and yet have losses low enough to be of practical significance. Three major phases of the effort were performed. Phase-I fabrication of the fiber for single mode operation in the wavelength region of 1300 nm and 1550 nm communication wavelength regions, Phase-II characterization of the linear performance of the fiber ie transmitivity and absorption coefficient were determined, and Phase-III characterization of the nonlinear refractive index of the fiber. The response time of nonresonant effects were measured between 1-10 Ps. This suggested that such a fiber could be used to design ultrafast optical switches and modulators.
- Manufacturing and Industrial Engineering and Control of Production Systems
- Fiber Optics and Integrated Optics