US4667331A
Expired / Lapsed
US
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Composite cavity laser utilizing an intra-cavity electrooptic waveguide device
Assignee: AT&T Co AND AT&T BELL LABORATORIES
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Filing: 1984-01-20
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Granted: 1987-05-19
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Expires: 2004-01-20
Abstract
Abstract Optical functions such as Q-switching, mode locking, cavity dumping, and modulation are generated by a simple laser arrangement which includes a gain medium and an electrically controllable, optical waveguide device optically coupled to the gain medium. The gain medium and waveguide device are either interposed between two reflective surfaces or coupled by a waveguide in order to form a single composite cavity laser structure. -
Inventors
- 👤 Rodney C. Alferness
- 👤 Gadi Eisenstein
- 👤 Steven K. Korotky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:20
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1106; H01S3/1109; H01S3/05; H01S3/08; H01S3/081; H01S3/083; H01S3/106; H01S3/107; H01S5/00; H01S5/10; H01S5/14; H01S5/146; H01S3/1123; H01S3/1127
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
An optoelectonic device including first and second reflective surfaces forming a single resonant cavity therebetween, a gain medium interposed between said reflective surfaces, an electrooptic waveguide means including at least one optical waveguide being optically coupled to the gain medium, the electrooptic waveguide means being interposed between the gain medium and the second reflective surface, and the electroopic waveguide means being electrically controllable for varying a predetermined characteristic therein.
Claim 2
Dependent Claim
69 words
An optoelectonic device including first and second reflective surfaces forming a single resonant cavity therebetween, a gain medium interposed between said reflective surfaces, an electrooptic waveguide means including at least one optical waveguide being optically coupled to the gain medium, the electrooptic waveguide means being interposed between the gain medium and the second reflective surface, and the electroopic waveguide means being electrically controllable for varying a predetermined characteristic therein.
Claim 3
Dependent Claim
20 words
The device as defined in claim 1 further including means for coupling the gain medium to the electrooptic waveguide means.
Claim 4
Dependent Claim
16 words
The device as defined in claim 1 wherein the electrooptic waveguide means is an amplitude modulator.
Claim 5
Dependent Claim
17 words
The device as defined in claim 1 wherein the electrooptic waveguide means is a directional coupler switch.
Claim 6
Dependent Claim
16 words
The device as defined in claim 1 wherein the electrooptic waveguide means is a tunable filter.
Claim 7
Dependent Claim
16 words
The device as defined in claim 1 wherein the electrooptic waveguide means is a polarization controller.
Claim 8
Dependent Claim
16 words
The device as defined in claim 1 wherein the electrooptic waveguide means is a phase shifter.
References Cited (Backward Citations)
US4039249A
Cited
US4111523A
Cited
US3877781A
Cited
US4005927A
Cited
JPS5232347A
Cited
US4012113A
Cited
US4157860A
Cited
US4146297A
Cited
US4251130A
Cited
US4243295A
Cited
US4273411A
Cited
US4372643A
Cited
US4380364A
Cited
US4381139A
Cited
US4384760A
Cited
US4390236A
Cited
US4400052A
Cited
JPS57168234A
Cited
US4549300A
Cited
US4503541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |