US4808285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making micro-optical components on polydiacetylene optical devices
Assignee: Verizon Laboratories Inc
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Filing: 1986-04-16
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Granted: 1989-02-28
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Expires: 2006-04-16
Abstract
Abstract A method of making Y couplers and grating optical waveguides of the present invention comprises exposing the polydiacetylene to an e-beam or a similar exposing means causing a change in the index of refraction of the polydiacetylene. In the case of e-beam exposure, the optical component patent is produced by directly controlling the e-beam which does not require any physical and/or chemical preparation of the polydiacetylene. The depth of penetration of the e-beam is controlled by the scanning rate and intensity of the e-beam. The optical gratings, fabricated by e-beam exposure technique, also inherit nonlinear optical properties which can be utilized in nonlinear optical applications.
Inventors
- 👤 Yung-Jui Chen
- 👤 Boris S. Elman
- 👤 Gary M. Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:22
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/081; G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/122; G02B6/125; G02B6/24; G02B6/26; G02B6/28; G02B6/2804
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
122 words
A method of making a micro-optical component on a polydiacetylene optical device comprising the following steps: Step 1--positioning an e-beam means over a surface of a polydiacetylene optical device, said surface being polydiacetylene having an index of refraction; Step 2--exposing said surface of the polydiacetylene optical device to an e-beam having a fluence and an energy at a predetermined location on said surface of said polydiacetylene optical device to form a micro-optical pattern, said fluence comprising a scanning rate and a current; and Step 3--controlling said fluence and energy of said e-beam to change said index of refraction of said exposed polydiacetylene surface at said predetermined location and at a predetermined depth to form a micro-optical component on said polydiacetylene optical device.
Claim 2
Independent Claim
122 words
A method of making a micro-optical component on a polydiacetylene optical device comprising the following steps: Step 1--positioning an e-beam means over a surface of a polydiacetylene optical device, said surface being polydiacetylene having an index of refraction; Step 2--exposing said surface of the polydiacetylene optical device to an e-beam having a fluence and an energy at a predetermined location on said surface of said polydiacetylene optical device to form a micro-optical pattern, said fluence comprising a scanning rate and a current; and Step 3--controlling said fluence and energy of said e-beam to change said index of refraction of said exposed polydiacetylene surface at said predetermined location and at a predetermined depth to form a micro-optical component on said polydiacetylene optical device.
Claim 3
Dependent Claim
50 words
A method in accordance with claim 1 wherein said fluence and energy of said e-beam comprises a scanning rate of said e-beam from about 0.01 to about 1.2 MHz and a current of said e-beam of from about 10 -8 amp to about 5×10 -10 amp at about 20 keV.
Claim 4
Dependent Claim
15 words
A method in accordance with claim 1 wherein said polydiacetylene optical device comprises a Y-coupler.
Claim 5
Dependent Claim
19 words
A method in accordance with claim 1 wherein said polydiacetylene optical device comprises an optical waveguide having a grating.
Claim 6
Dependent Claim
21 words
A method in accordance with claim 1 wherein said polydiacetylene optical device comprises an optical waveguide having a nonlinear optical grating.
Claim 7
Dependent Claim
21 words
A method in accordance with claim 1 wherein said polydiacetylene optical device comprises an optical waveguide having a linear optical grating.
References Cited (Backward Citations)
US4220747A
Cited
US4439514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |