Optical waveguides – Optical fiber waveguide with cladding
Patent
1998-11-04
2000-06-06
Ullah, Akm E.
Optical waveguides
Optical fiber waveguide with cladding
G02B 602
Patent
active
060729309
ABSTRACT:
A method of forming a preform which has a glass core surrounded by an outer glass cladding with a coating of an particulate optically active material disposed between the core and cladding. The method includes providing a glass core having a viscosity which lies within a given preselected temperature range, followed by forming a coherent coating of an optically active particulate material over the surface of the core, with the coating material having a viscosity which is equal to or less than the viscosity of the glass core. A glass cladding is formed over the coated layer, with the cladding glass having a viscosity which overlaps the viscosity of the core glass. The optically active material is an inorganic material which includes a metal, metal alloy, ferrite, magnetic material and a semiconductor. The invention includes the product formed by the process.
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Flattery James
Keller, Jr. Douglas V.
Kornreich Philipp G.
Syracuse University
Ullah Akm E.
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