US5007065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bilithic unidirectional ring laser
Assignee: Agilent Technologies Inc
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Filing: 1988-08-19
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Granted: 1991-04-09
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Expires: 2008-08-19
Abstract
Abstract A bilithic laser resonator having a first block separated from a second block by a gap that can be adjusted to tune the wavelength of the laser. At least one of these blocks consists of a material that is capable of lasing and at least one of these blocks consists of a material that is capable of producing Faraday rotation of an optical beam.
Inventors
- 👤 William R. Trutna, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:35
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/0602; H01S3/0606; H01S3/08; H01S3/081; H01S3/083; H01S3/10; H01S3/105
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
136 words
A bilithic laser resonator comprising: a first block; a second block, separated by a gap of width W g from the first block; at least one of said first and second blocks being of a material capable of lasing; at least one of said first and second blocks being of a material capable of producing Faraday rotation of an optical beam travelling therein; means for varying the width W g of said gap; means for defining, within a region consisting of the first and second blocks and the gap between these two blocks, a resonant unidirectional ring that includes at least four non-coplanar reflection vertices input means for injecting an input beam of light into said ring to pump the laser; and output means for extracting an output laser beam from light in said unidirectional ring.
Claim 2
Dependent Claim
136 words
A bilithic laser resonator comprising: a first block; a second block, separated by a gap of width W g from the first block; at least one of said first and second blocks being of a material capable of lasing; at least one of said first and second blocks being of a material capable of producing Faraday rotation of an optical beam travelling therein; means for varying the width W g of said gap; means for defining, within a region consisting of the first and second blocks and the gap between these two blocks, a resonant unidirectional ring that includes at least four non-coplanar reflection vertices input means for injecting an input beam of light into said ring to pump the laser; and output means for extracting an output laser beam from light in said unidirectional ring.
Claim 3
Dependent Claim
65 words
A resonator as in claim 1 wherein: said input means and output means comprise a first surface of said first block upon which an input beam of light is to be incident, a portion of this input beam passing through said first surface into said ring; and a portion of the light in said ring passing across said first surface to produce an output beam.
Claim 4
Dependent Claim
55 words
A resonator as in claim 1 wherein: the ring is contained within the region consisting of the second block and the gap between the blocks the ring has a reflection vertex on a surface of the first block; and the second block consists of a material that is capable of lasing and producing Faraday rotation.
Claim 5
Dependent Claim
12 words
A resonator as in claim 3 wherein the first block is transparent.
Claim 6
Dependent Claim
24 words
A resonator as in claim 1 wherein: the ring extends into the first block, the second block and the gap between these two blocks;
Claim 7
Dependent Claim
41 words
A resonator as in claim 5 wherein: the first block consists of a material that is capable of lasing; and the second block consists of a material that is capable of producing Faraday rotation in the presence of a magnetic field.
Claim 8
Dependent Claim
41 words
A resonator as in claim 5 wherein: the second block consists of a material that is capable of lasing; and the first block consists of a material that is capable of producing Faraday rotation in the presence of a magnetic field.
Claim 9
Dependent Claim
42 words
A resonator as in claim 1 wherein said means for varying the gap comprises a piezoelectric shear plate upon which one of said first and second blocks is mounted, said shear plate translating said block in response to an applied control signal.
Claim 10
Dependent Claim
28 words
A resonator as in claim 1 wherein the minor angle between pairs of planes, each containing three successive reflection vertices on the ring, is less than 45 degrees.
Claim 11
Dependent Claim
20 words
A resonator as in claim 9 wherein the minor angle between said pairs of planes is less than 10 degrees.
Claim 12
Dependent Claim
20 words
A resonator as in claim 9 wherein the minor angle between said pairs of planes is the range 0.5-2.0 degrees.
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) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |