US4728168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite cavity laser utilizing an intra-cavity electrooptic waveguide device
Assignee: Nokia Bell Labs
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Filing: 1986-11-26
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Granted: 1988-03-01
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Expires: 2006-11-26
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
2026-11-03 12:58
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1106; H01S3/1109; G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/035; G02F1/29; G02F1/31; G02F1/313; G02F1/3132; H01S3/106; H01S3/107; H01S3/1123; H01S3/115; H01S5/00; H01S5/10; H01S5/14; H01S5/146; H01S3/05; H01S3/08; H01S3/081; H01S3/083; H01S3/1127
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
An optoelectronic device for generating optical signals including an electrooptic waveguide means being electrically controllable for varying a predetermined characteristic therein and including at least one optical waveguide, a gain medium being optically coupled to a first end surface of the at least one optical waveguide, means being optically coupled to both the gain medium and a second end surface opposite said first end surface of the at least one optical waveguide for transferring optical signals between the electrooptic waveguide means and the gain medium such that a single resonant optical cavity is formed in the optoelectronic device.
Claim 2
Dependent Claim
98 words
An optoelectronic device for generating optical signals including an electrooptic waveguide means being electrically controllable for varying a predetermined characteristic therein and including at least one optical waveguide, a gain medium being optically coupled to a first end surface of the at least one optical waveguide, means being optically coupled to both the gain medium and a second end surface opposite said first end surface of the at least one optical waveguide for transferring optical signals between the electrooptic waveguide means and the gain medium such that a single resonant optical cavity is formed in the optoelectronic device.
Claim 3
Dependent Claim
27 words
The device as defined in claim 1 further including means for coupling the gain medium to the first end surface of the at least one optical waveguide.
Claim 4
Dependent Claim
17 words
The device as defined in claim 1 wherein the electrooptic waveguide means is a directional coupler switch.
Claim 5
Dependent Claim
16 words
The device as defined in claim 1 wherein the electrooptic waveguide means is a tunable filter.
Claim 6
Dependent Claim
16 words
The device as defined in claim 1 wherein the electrooptic waveguide means is a polarization controller.
Claim 7
Dependent Claim
19 words
The device as defined in claim 1 further including means for extracting optical signals from the electrooptic waveguide means.
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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) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |