Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1989-07-17
1990-12-25
Schor, Kenneth M.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 29, 65 421, 65 311, 350 9615, C03B 2320
Patent
active
049799720
ABSTRACT:
A fiber optic coupler is formed by providing a glass tube having a longitudinal extending aperture. Protective coating is removed from a region of a first optical fiber intermediate the end. Protective coating is removed from an end region of at least one other optical fiber. The coated portion of the first fiber is threaded through the tube until the uncoated region is near the tube end. The uncoated region of the second fiber is placed adjacent that of the first fiber, and both uncoated regions are simultaneously fed into the tube aperture. The threading operation is continued until the uncoated regions extend through the midregion of the tube, the midregion is heated to collapse it about the fibers, and the central portion of the midregion is drawn to reduce the diameter along a predetermined length.
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Dyott et al., Polarization Holding Directional Couplers Using D Fiber Society of Photo-Optical Instrumentation Engineers, vol. 479, 1984, pp. 23-27.
Berkey George E.
Krowiak Mark T.
Saunders Daniel P.
Bruckner John J.
Corning Incorporated
Schor Kenneth M.
Simmons, Jr. William J.
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