US3763441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for phase-synchronization of several laser oscillators
Assignee: Siemens AG
•
Filing: 1972-06-12
•
Granted: 1973-10-02
•
Expires: 1992-06-12
Abstract
Abstract A device for phase synchronization of several laser oscillators characterized by several partial laser oscillators, each of which has active material and a first reflecting mirror, being arranged with a common second reflecting mirror to complete the resonators of each partial oscillator, and an optical component which is disposed between the common second mirror and the active material of each partial oscillator for phase coherent superposing the partial waves from each partial oscillator to create a single summation wave which is phase synchronized and coherent. The optical component can be a grating or a hologram which is preferably a volume phase hologram. The device is particularly useful for providing a pumping device for a solid state laser which device uses semiconductor lasers.
Inventors
- 👤 D Roess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:29
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
89 words
A device for providing a single phase synchronized laser wave, comprising several partial laser oscillators with each oscillator having active material for producing a partial wave and a first reflector, a second reflector arranged with the partial oscillators to provide a common second reflector to complete the resonator and each oscillator, and means comprising a hologram disposed between a common reflector and the active material of each partial oscillator for phase-coherent superposing the partial waves from each of the partial oscillators to create a single, phase-synchronized coherent summation wave.
Claim 2
Independent Claim
89 words
A device for providing a single phase synchronized laser wave, comprising several partial laser oscillators with each oscillator having active material for producing a partial wave and a first reflector, a second reflector arranged with the partial oscillators to provide a common second reflector to complete the resonator and each oscillator, and means comprising a hologram disposed between a common reflector and the active material of each partial oscillator for phase-coherent superposing the partial waves from each of the partial oscillators to create a single, phase-synchronized coherent summation wave.
Claim 3
Dependent Claim
12 words
A device according to claim 1, wherein the hologram is a grating.
Claim 4
Dependent Claim
14 words
A device according to claim 2, wherein the hologram is a volume phase hologram.
Claim 5
Dependent Claim
45 words
A device according to claim 2, wherein the hologram is an interference structure which is created by superposing an approximate spherical wave with a series of spherical waves of the various partial resonators with the hologram located at the beam waist of the superposed waves.
Claim 6
Dependent Claim
45 words
A device according to claim 1, wherein the hologram is an interference structure which is created by superposing an approximate spherical wave with a series of spherical waves of the various partial resonators with the hologram located at the beam waist of the superposed waves.
Claim 7
Dependent Claim
14 words
A device according to claim 1, wherein the hologram is a volume phase hologram.
Claim 8
Dependent Claim
45 words
A device according to claim 6, wherein the hologram is an interfrerence structure which is created by superposing an approximate spherical wave with a series of spherical waves of the various partial resonators with the hologram located at the beam waist of the superposed waves.
Claim 9
Dependent Claim
104 words
In a laser device having a solid state laser body disposed in a resonator and means for pumping the laser body the improvement comprising the pumping means comprising several partial oscillators with each oscillator having active material for producing a partial wave and a first reflector, a second reflector to complete the partial resonators and each of the oscillators, and means disposed between the common second reflector and the active material of each partial oscillator for phase-coherent superposing the partial waves for each of the partial oscillators to create a single phase synchronized, coherent summation wave for axially pumping the solid state laser body.
Claim 10
Dependent Claim
104 words
In a laser device having a solid state laser body disposed in a resonator and means for pumping the laser body the improvement comprising the pumping means comprising several partial oscillators with each oscillator having active material for producing a partial wave and a first reflector, a second reflector to complete the partial resonators and each of the oscillators, and means disposed between the common second reflector and the active material of each partial oscillator for phase-coherent superposing the partial waves for each of the partial oscillators to create a single phase synchronized, coherent summation wave for axially pumping the solid state laser body.
References Cited (Backward Citations)
US3435371A
Cited
US3577093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |