Patent US5097478A successfully refreshed from Google Patents.
US5097478A
Expired / Lapsed
US
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Ring cavity laser device
Assignee: Thales SA
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Filing: 1990-11-30
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Granted: 1992-03-17
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Expires: 2010-11-30
Abstract
Abstract A ring cavity laser device includes a slave laser placed in a ring cavity. The injection locking of a beam emitted by a master laser is achieved by a non-linear material in which interference occurs between the master laser beam and the beam circulating in the ring.
Inventors
- 👤 Jean-Marc Verdiell
- 👤 Jean-Pierre Huignard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:21
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/10084; H01S3/10092; H01S3/05; H01S3/08; H01S3/081; H01S3/083; H01S3/106; H01S3/108; H01S5/00; H01S5/10; H01S5/1071
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A ring cavity laser device comprising: an optical ring cavity for circulating an optical wave, an amplifying medium, located in the optical ring cavity, for forming a slave laser, a master laser for emitting a master light beam which is injected into the optical ring cavity for operation of the slave laser, and a non-linear material situated in the optical ring cavity for receiving the master light beam of the master laser, the master light beam traversing the non-linear medium forming a signal beam at the non-linear material, the optical wave circulating in the optical cavity, and emitted by the slave laser, forming a pump wave at the non-linear material.
Claim 2
Dependent Claim
110 words
A ring cavity laser device comprising: an optical ring cavity for circulating an optical wave, an amplifying medium, located in the optical ring cavity, for forming a slave laser, a master laser for emitting a master light beam which is injected into the optical ring cavity for operation of the slave laser, and a non-linear material situated in the optical ring cavity for receiving the master light beam of the master laser, the master light beam traversing the non-linear medium forming a signal beam at the non-linear material, the optical wave circulating in the optical cavity, and emitted by the slave laser, forming a pump wave at the non-linear material.
Claim 3
Dependent Claim
32 words
A laser device according to claim 1, wherein the optical ring cavity includes reflective devices to close the cavity, the non-linear material also forming a reflection device to close the ring cavity.
Claim 4
Dependent Claim
27 words
A laser according to claim 2, wherein one of the reflective devices is semi-transparent to allow exit of the optical wave circulating in the optical ring cavity.
Claim 5
Dependent Claim
39 words
A laser device according to claim 1, wherein the non-linear material transmits a part of the energy of the optical wave circulating in the optical ring cavity in a direction co-linear to the pump wave at the non-linear material.
Claim 6
Dependent Claim
30 words
A laser device according to claim 1, wherein the slave laser is a laser network, focussing devices being associated with both an input and an output of the slave laser.
Claim 7
Dependent Claim
16 words
A laser device according to claim 1, wherein the non-linear material is of BaTiO 3 .
References Cited (Backward Citations)
US5034951A
Cited
US5027360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |