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US5802085A
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US
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Singlemode laser source tunable in wavelength with a self-aligned external cavity
Assignee: Yenista Optics SA
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Filing: 1996-11-13
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Granted: 1998-09-01
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Expires: 2016-11-13
Abstract
Abstract This invention relates to a singlemode laser source tunable in wavelength with a self-aligned external cavity, comprising: a resonant cavity having an output face that is partially reflecting (331) and a retroreflecting dispersive device (31, 39), defining a main collimating axis (351) and a secondary collimating axis (381), an amplifier wave guide (33) placed in position inside the resonant cavity. The retroreflecting dispersive device comprises a plane diffraction grating (31) having dispersion planes and an orthogonal reflecting dihedral (39) whose line of intersection (391) is parallel to the dispersion plane of the diffraction grating containing the collimating axes (351, 352).
Inventors
- 👤 Herve Lefevre
- 👤 Philippe Martin
- 👤 Bernard Laloux
- 👤 Philippe Graindorge
- 👤 Laurent Disdier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:06
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/10; H01S5/14; H01S5/141; H01S5/143; H01S3/00; H01S3/05; H01S3/08; H01S3/081; H01S3/0811; H01S3/0812; H01S3/10; H01S3/105; H01S3/1055; H01S5/02; H01S5/022; H01S5/023; H01S5/02325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
Singlemode laser source tunable in wavelength with a self-aligned external cavity, comprising: a resonant cavity having a partially reflecting output face and a retroreflecting dispersive device defining a main collimating axis and a secondary collimating axis; and an amplifier wave guide disposed inside the resonant cavity, wherein the retroreflecting dispersive device comprises a plane diffraction grating having dispersion planes and an orthogonal reflecting dihedral whose line of intersection is parallel to the dispersion plane of the diffraction grating containing the collimating axes, and wherein the diffraction grating and the dihedral each have an orientation; said laser source further comprising adjustment means for adjusting the orientation of at least one of the elements including the diffraction grating and the dihedral.
Claim 2
Dependent Claim
119 words
Singlemode laser source tunable in wavelength with a self-aligned external cavity, comprising: a resonant cavity having a partially reflecting output face and a retroreflecting dispersive device defining a main collimating axis and a secondary collimating axis; and an amplifier wave guide disposed inside the resonant cavity, wherein the retroreflecting dispersive device comprises a plane diffraction grating having dispersion planes and an orthogonal reflecting dihedral whose line of intersection is parallel to the dispersion plane of the diffraction grating containing the collimating axes, and wherein the diffraction grating and the dihedral each have an orientation; said laser source further comprising adjustment means for adjusting the orientation of at least one of the elements including the diffraction grating and the dihedral.
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) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |