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US 5,044,725 AGranted
Polymeric thin film waveguide media
AssigneeHoechst Celanese Corporation
InventorsRonald N. DeMartino, Hyun-Nam Yoon, James B. Stamatoff
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Abstract
This invention provides polymeric thin film optical waveguide media which exhibit nonlinear optical response, and which have utility as an optical waveguide component in all-optical and electrooptical light switch and light modulator devices. An invention waveguide medium consists of a thin film of an amorphous organic polymer as illustrated by the following structure: ##STR1##
Claims1
A thin film optical waveguiding medium comprising a sidechain polymer having recurring units of the formula:
- ##STR19## where P' is a polymer main chain unit, S' is a pendant spacer group having a linear chain length of between about 2-12 atoms;
- n' is an integer greater than 0, n is zero or an integer greater than 0, C is accordingly an optical comonomer unit and M' is an organic structure containing an electron donating group and an electron withdrawing group at opposing terminii of a conjugated II electron system.
Dependencies are inferred from the claim text.