Optical waveguides – With optical coupler – Input/output coupler
Patent
1990-01-31
1991-08-06
Healy, Brian
Optical waveguides
With optical coupler
Input/output coupler
65 102, 65 12, 65 37, G02B 632, C03B 1108
Patent
active
050371746
ABSTRACT:
An optical fiber having an axis therethrough and having a tip thereon comprising a first tapered region and a second adjacent tapered region. The second tapered region terminates in an aspherical lens. Each of the tapered regions having a surface thereon. The surface of the first tapered region defines an angle with respect to the axis of the fiber that lies in the range from about ten (10) to about thirty (30) degrees, while the surface of the second tapered region defining an angle with respect to the axis of the fiber that lies in the range from about thirty-five (35) to about sixty (60) degrees. The second tapered region is produced as a result of a jerking action imposed during the drawing of the fiber.
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E. I. Du Pont de Nemours and Company
Healy Brian
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