Athermal polymer optical waveguide on polymer substrate
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United States of America Patent
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-
Oct 31, 2006
Grant Date -
Jul 3, 2003
app pub date -
Sep 16, 2002
filing date -
Sep 14, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A planar optical waveguide is provided. The planar optical waveguide includes a polymer substrate having a coefficient of thermal expansion, a first cladding disposed on the substrate, and a core disposed on at least a portion of the first cladding. The core is a halogenated polymer having an absorptive optical loss of less than approximately 2.5.times.10.sup.-4 dB/cm in the range from about 1250 to 1700 nm. The core has a thermo-optic coefficient and a refractive index, a product of the thermo-optic coefficient and the reciprocal of the refractive index being approximately equal to the negative of the coefficient of thermal expansion.
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