US4759026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dye lasers
Assignee: UK Secretary of State for Defence
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Filing: 1986-08-13
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Granted: 1988-07-19
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Expires: 2006-08-13
Abstract
Abstract A dye laser capable of lasing at a plurality of wavelengths simultaneously, e.g. three, comprises a corresponding plurality of transparent containers 4, 5, 6 located between a partially-reflecting mirror 1 and a tiltably adjustable retroreflecting diffraction grating 2 with the containers transversely staggered. The staggered ends of the containers are irradiated by a shallow beam 9 from a pumping laser 7 and contain separate dye solutions whereof the emission spectra increase in wavelength from container to container starting from that container nearest the pumping laser. There are thus formed three parallel cavities which can lase simultaneously, tuned by the grating 2 operating in three different diffraction orders.
Inventors
- 👤 Richard C. Hollins
- 👤 David L. Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:47
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/07; H01S3/02; H01S3/022; H01S3/08; H01S3/081; H01S3/082; H01S3/0823; H01S3/0826; H01S3/08086; H01S3/10; H01S3/11; H01S3/1123; H01S3/121; H01S3/123
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
149 words
A dye laser comprising a cavity including container means for containing a plurality of separate dye solutions located between a semi-transparent reflector and a retroreflective diffracting means; said container means having a compartment for each dye solution and said compartments having transparent portions extending transversely relative to a line between said reflector and said diffracting means, said portions being staggered in said transverse direction; and pumping laser means arranged to simultaneously irradiate all said portions with a shallow beam directed in a transverse direction; whereby when said compartments contain separate dye solutions whereof the emission spectra increase in wavelength from compartment to compartment starting from that compartment whose said transparent portion is nearest the pumping laser, each said portion intercepted by the beam can provide dye-laser action corresponding to its contained dye solution without absorption of its emitted spectrum by a solution whose emission spectrum is of longer wavelength.
Claim 2
Dependent Claim
149 words
A dye laser comprising a cavity including container means for containing a plurality of separate dye solutions located between a semi-transparent reflector and a retroreflective diffracting means; said container means having a compartment for each dye solution and said compartments having transparent portions extending transversely relative to a line between said reflector and said diffracting means, said portions being staggered in said transverse direction; and pumping laser means arranged to simultaneously irradiate all said portions with a shallow beam directed in a transverse direction; whereby when said compartments contain separate dye solutions whereof the emission spectra increase in wavelength from compartment to compartment starting from that compartment whose said transparent portion is nearest the pumping laser, each said portion intercepted by the beam can provide dye-laser action corresponding to its contained dye solution without absorption of its emitted spectrum by a solution whose emission spectrum is of longer wavelength.
Claim 3
Dependent Claim
19 words
A laser as claimed in claim 1 wherein the compartments are individual separable containers arranged in side-by-side overlapping relationship.
Claim 4
Dependent Claim
18 words
A laser as claimed in claim 1 wherein the transparent portions of said compartments are of rectangular cross-section.
Claim 5
Dependent Claim
33 words
A laser as claimed in claim 1 wherein the compartments are inclined in the direction of said line between said reflector and said diffracting means to suppress unwanted radiation reflected from their walls.
Claim 6
Dependent Claim
44 words
A laser as claimed in claim 1 wherein the diffracting means is one adapted to give retroreflection simultaneously at the same incidence angle in a plurality of diffraction orders whereby to produce simultaneous dye-laser action in all said compartments when containing appropriate dye solutions.
Claim 7
Dependent Claim
16 words
A laser as claimed in claim 5 wherein the diffracting means is an adjustably tilted grating.
Claim 8
Dependent Claim
22 words
A laser as claimed in claim 1 and including said separate dye solutions contained within the respective compartments of said container means.
Claim 9
Dependent Claim
18 words
A laser as claimed in claim 2 wherein the transparent portions of said compartments are of rectangular cross-section.
Claim 10
Dependent Claim
33 words
A laser as claimed in claim 2 wherein the compartments are inclined in the direction of said line between said reflector and said diffracting means to suppress unwanted radiation reflected from their walls.
Claim 11
Dependent Claim
33 words
A laser as claimed in claim 3 wherein the compartments are inclined in the direction of said line between said reflector and said diffracting means to suppress unwanted radiation reflected from their walls.
Claim 12
Dependent Claim
33 words
A laser as claimed in claim 8 wherein the compartments are inclined in the direction of said line between said reflector and said diffracting means to suppress unwanted radiation reflected from their walls.
Claim 13
Dependent Claim
44 words
A laser as claimed in claim 2 wherein the diffracting means is one adapted to give retroreflection simultaneously at the same incidence angle in a plurality of diffraction orders whereby to produce simultaneous dye-laser action in all said compartments when containing appropriate dye solutions.
Claim 14
Dependent Claim
44 words
A laser as claimed in claim 3 wherein the diffracting means is one adapted to give retroreflection simultaneously at the same incidence angle in a plurality of diffraction orders whereby to produce simultaneous dye-laser action in all said compartments when containing appropriate dye solutions.
Claim 15
Dependent Claim
44 words
A laser as claimed in claim 4 wherein the diffracting means is one adapted to give retroreflection simultaneously at the same incidence angle in a plurality of diffraction orders whereby to produce simultaneous dye-laser action in all said compartments when containing appropriate dye solutions.
Claim 16
Dependent Claim
22 words
A laser as claimed in claim 2 and including said separate dye solutions contained within the respective compartments of said container means.
Claim 17
Dependent Claim
22 words
A laser as claimed in claim 3 and including said separate dye solutions contained wherein the respective compartments of said container means.
Claim 18
Dependent Claim
22 words
A laser as claimed in claim 4 and including said separate dye solutions contained within the respective compartments of said container means.
Claim 19
Dependent Claim
22 words
A laser as claimed in claim 5 and including said separate dye solutions contained within the respective compartments of said container means.
Claim 20
Dependent Claim
22 words
A laser as claimed in claim 6 and including said separate dye solutions contained within the respective compartments of said container means.
References Cited (Backward Citations)
US3810040A
Cited
US4710937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-19 | 1992-01-18 | 1992-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-19 | 1996-01-18 | 1996-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-19 | 2000-01-18 | 2000-07-19 | $7700.00 | Window Closed / Lapsed |