Patent US5044725A successfully refreshed from Google Patents.
US5044725A
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Polymeric thin film waveguide media
Assignee: Corning Inc
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Filing: 1990-11-16
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Granted: 1991-09-03
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Expires: 2010-11-16
Abstract
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##
Inventors
- 👤 Ronald N. DeMartino
- 👤 Hyun-Nam Yoon
- 👤 James B. Stamatoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:41
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08F; C08F8/00; C08F8/30; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; C09K19/3876; C09K19/388; C09K19/40; C09K19/406; C09K19/408; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
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.
Claim 2
Dependent Claim
89 words
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.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-02 | 1995-03-04 | 1995-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-02 | 1999-03-04 | 1999-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-02 | 2003-03-04 | 2003-09-03 | $7700.00 | Window Closed / Lapsed |