Optical waveguides – Optical waveguide sensor
Patent
1992-10-01
1993-11-02
Gonzalez, Frank
Optical waveguides
Optical waveguide sensor
385123, 385129, 385141, 385142, G02B 600
Patent
active
052590461
ABSTRACT:
Optical waveguide amplifiers and lasers having a novel fluorescent dopant distribution are disclosed. Exemplarily, in a Si-based optical fiber the fluorescent dopant (e.g., Er) has an annular distribution, with the concentration maximum not at the center of the core but typically between the center and the core/cladding interface. The novel waveguides can be relatively insensitive to variations in cut-off wavelength and/or modal distribution of pump power.
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"Modeling of Gain in Erbium-Doped Fiber Amplifiers", by A. A. M. Saleh et al., IEEE Photonics Technology Letters, vol. 2, No. 10, Oct. 1990, pp. 714-717.
"Optical Waveguides with Novel Compositions", by J. B. MacChesney et al., paper WH5, Proceedings of the Optical Fiber Conference 1985, p. 100, (1985).
DiGiovanni David J.
Vengsarkar Ashish M.
Walker Kenneth L.
AT&T Bell Laboratories
Gonzalez Frank
Pacher Eugen E.
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