Accession Number : ADA330280
Title : All-Optical Switching Based on Induced Wavelength Shift in a CDSSE-Doped Fiber.
Descriptive Note : Final rept. Jun 95-Jun 96,
Corporate Author : CONNECTICUT UNIV STORRS
Personal Author(s) : Donkor, Eric
PDF Url : ADA330280
Report Date : FEB 1997
Pagination or Media Count : 23
Abstract : 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 CdSSe/glass 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.
Descriptors : *FIBER OPTICS, REFRACTIVE INDEX, SEMICONDUCTORS, GLASS FIBERS, OPTICAL SWITCHING, MODULATORS, ABSORPTION COEFFICIENTS, CADMIUM SELENIDES, TRANSMISSIVITY.
Subject Categories : Mfg & Industrial Eng & Control of Product Sys
Fiber Optics and Integrated Optics
Distribution Statement : APPROVED FOR PUBLIC RELEASE