US5692075A
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Mach-zehnder type electro-optic polymer modulator in which an initial output state can be controlled by post-photobleaching
Assignee: Electronics and Telecommunications Research Institute
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Filing: 1996-10-25
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Granted: 1997-11-25
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Expires: 2016-10-25
Abstract
Abstract The invention is related to an improved mach-zehnder type electro-optic polymer modulator which is capable of controlling its initial output state by post-photobleaching method, thus achieving a more stable output characteristic of a device without use of a bias electrode, which includes first and second electrodes formed on an upper portion of first and second arms have different lengths wherein a mach-zehnder type electro-optic polymer modulator.
Inventors
- 👤 Wol-Yon Hwang
- 👤 Jang-Joo Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:43
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/015; G02F1/025; G02F1/21; G02F1/225; G02F1/061; G02F1/065; G02F2203/00; G02F2203/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A mach-zehnder type electro-optic polymer waveguide modulator in which an initial output state can be controlled by post-photobleaching, having two electrodes formed on two arms of the modulator, wherein said two electrodes have different length from each other in order to control a initial phase difference between said two arms by using post-photobleaching.
Claim 2
Dependent Claim
53 words
A mach-zehnder type electro-optic polymer waveguide modulator in which an initial output state can be controlled by post-photobleaching, having two electrodes formed on two arms of the modulator, wherein said two electrodes have different length from each other in order to control a initial phase difference between said two arms by using post-photobleaching.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-24 | 2001-05-26 | 2001-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-24 | 2005-05-26 | 2005-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-24 | 2009-05-26 | 2009-11-25 | $7700.00 | Window Closed / Lapsed |