Optical conduit with thermoplastic clad

Details Optical conduit with thermoplastic clad Optical conduit with thermoplastic clad

1990-08-13

1991-10-01

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing nonsolid core or cladding

385123, G02B 620

Patent

active

050527789

ABSTRACT:
A flexible clad, monofilament optical conduit having a flexible light transmitting polymeric core having a relatively high refractive index which is surrounded by a shrunk, heat shrinkable cladding having a relatively low refractive index in comparison to that of the core and which has a relatively small, uniform gap between the outer periphery of the core and the inner periphery of the heat shrinkable cladding, and a method of manufacture whereby a plurality of such conduits are simultaneously produced by polymerization of the conduit core forming material within a length of unshrunken heat shrinkable material which in turn is contained within a relatively thick, durable protective tubing and removal of the relatively thick protective tubing subsequent to polymerization and then shrinking the heat shrinkable material to form a relatively uniform gap between the core and the clad.

REFERENCES:
patent: 3434774 (1969-03-01), Miller
patent: 3641332 (1972-02-01), Reick
patent: 3712705 (1973-01-01), Marcatili
patent: 3813141 (1974-05-01), Miller
patent: 3901674 (1975-08-01), Strack
patent: 3920312 (1975-11-01), Siegmund
patent: 4105284 (1978-08-01), Olshansky
patent: 4354736 (1982-10-01), Maklad
patent: 4458986 (1984-07-01), Yuto et al.
patent: 4781433 (1988-11-01), Arrayo et al.
patent: 4957347 (1990-09-01), Zarian

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