Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1989-12-04
1992-03-31
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 14, 264 22, 264 24, 4251744, 4251748R, 385 14, 385122, 385132, G02F 100
Patent
active
051005891
ABSTRACT:
A channel waveguide is integrally formed within a structure made of a non-linear optical polymer by focussing a beam of optical radiation into a specified region within the structure where the channel waveguide is to be located. The focussed beam of optical radiation raises the temperature of the polymer in the specified region to above the glass-transition temperature for the polymer. A poling electric field is applied to the structure to cause molecular alignment of the polymer to occur in the specified region of the structure. Then the beam of optical radiation is removed while the poling electric field is maintained, thereby maintaining molecular alignment of the polymer in the specified region as the temperature of the specified region falls below the glass-transition temperature. A change in index of refraction of the polymer in the specified region of the structure due to the molecular alignment of the polymer in the specified region enables the specified region to function as a channel waveguide.
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Lockheed Missiles & Space Company Inc.
Morrissey John J.
Thurlow Jeffery
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