US3626319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser structures and the like
Assignee: Warner Lambert Co LLC
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Filing: 1970-04-14
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Granted: 1971-12-07
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Expires: 1990-04-14
Abstract
Abstract A solid unitary laser structure of high optical and thermal efficiency comprising elongated rod of laser glass and elongated flash tube bore completely enclosed within cladding glass of predetermined characteristics.
Inventors
- 👤 Charles Gilbert Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:13
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/04; H01S3/042; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/0405; H01S3/05; H01S3/06; H01S3/0602; H01S3/0612; H01S3/14; H01S3/16; H01S3/17
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
319 words
An integral solid laser structure comprising a thin elongated laser component formed of glass contaiNing an active laserable ingredient, a thin elongated main body member surrounding said laser component throughout the length thereof and formed of a glass transparent to optical energy of a predetermined pumping wavelength band for said laserable ingredient, said laser component having smooth sidewall portions extending throughout the length thereof and disposed within said main body member so as to have all parts of said sidewall portions in fused integral relation with said main body member throughout the length thereof, the glass of said main body member and the glass of said laser component having such related refractive indices as to jointly provide no more than a very small predetermined refractive index difference at the interface therebetween, pumping light source means comprising at least an elongated smooth-sided flash tube bore formed within said main body member closely adjacent said laser component and extending in substantially parallel relation to said component throughout the greater part of the length of said main body member, means closing said flash tube bore at its opposite ends and said bore being filled with an ionizable gas, a pair of electrodes carried by said main body member adjacent said opposite ends and extending into said bore, said laser component having flat optically finished surfaces formed upon the opposite ends thereof and disposed in parallel relation to each other, a relatively thin layer of highly light-reflective heat-conductive material encircling said main body member throughout the greater part of the length thereof and disposed in intimate contacting relation with the exterior sidewall portions of said main body member, the peripheral shape of said exterior sidewall portions of said main body member and of said thin reflective layer thereon being such as to tend to reflect most of the pumping light generated within said flash tube bore during operation thereof toward said laser component.
Claim 2
Dependent Claim
319 words
An integral solid laser structure comprising a thin elongated laser component formed of glass contaiNing an active laserable ingredient, a thin elongated main body member surrounding said laser component throughout the length thereof and formed of a glass transparent to optical energy of a predetermined pumping wavelength band for said laserable ingredient, said laser component having smooth sidewall portions extending throughout the length thereof and disposed within said main body member so as to have all parts of said sidewall portions in fused integral relation with said main body member throughout the length thereof, the glass of said main body member and the glass of said laser component having such related refractive indices as to jointly provide no more than a very small predetermined refractive index difference at the interface therebetween, pumping light source means comprising at least an elongated smooth-sided flash tube bore formed within said main body member closely adjacent said laser component and extending in substantially parallel relation to said component throughout the greater part of the length of said main body member, means closing said flash tube bore at its opposite ends and said bore being filled with an ionizable gas, a pair of electrodes carried by said main body member adjacent said opposite ends and extending into said bore, said laser component having flat optically finished surfaces formed upon the opposite ends thereof and disposed in parallel relation to each other, a relatively thin layer of highly light-reflective heat-conductive material encircling said main body member throughout the greater part of the length thereof and disposed in intimate contacting relation with the exterior sidewall portions of said main body member, the peripheral shape of said exterior sidewall portions of said main body member and of said thin reflective layer thereon being such as to tend to reflect most of the pumping light generated within said flash tube bore during operation thereof toward said laser component.
Claim 3
Dependent Claim
73 words
A laser structure as defined in claim 1 wherein the cross-sectional area of the glass of said main body member is reduced to a substantial minimum considered in comparison with the cross-sectional area of said laser component and said flash tube bore and the total cross-sectional area of the glass of the main body member is no more than approximately three times the cross-sectional area of said bore and said laser component combined.
Claim 4
Dependent Claim
27 words
A laser structure as defined in claim 2 wherein the main body member at substantially all transverse sections thereof is approximately of the shape of an ellipse.
Claim 5
Dependent Claim
45 words
A laser structure as defined in claim 1, comprising a second layer of heat-conductive material of greater thickness than said first layer disposed about the outer surface of said first layer throughout the greater part of the length thereof and in intimate contacting relation therewith.
Claim 6
Dependent Claim
39 words
A laser structure as defined in claim 1 wherein said laser component is formed of a core of laser glass embodying a laserable ingredient therein and is surrounded by a cladding of glass containing a laser light-absorbing ingredient therein.
Claim 7
Dependent Claim
46 words
A laser structure as defined in claim 4, and including a plurality of metal fins disposed in contacting relation to outer surface portions of said second layer and extending outwardly therefrom in such a manner as to aid in the dissipation of heat from said structure.
Claim 8
Dependent Claim
37 words
A laser structure as defined in claim 6, and including a wall surrounding said plurality of metal fins so as to define a plurality of guide channels for a circulated coolant when used with said laser structure.
Claim 9
Dependent Claim
306 words
An integral solid laser structure comprising a thin elongated laser component formed of glass containing an active laserable ingredient, a thin elongated main body member surrounding said laser component throughout the length thereof and formed of a glass transparent to optical energy of a predetermined pumping wavelength band for said laserable ingredient, said laser component having relatively smooth sidewall portions extending thrOughout the length thereof and disposed within said main body member so as to have all parts of said sidewall portions in fused integral relation with said main body member throughout the length thereof, pumping light source means comprising at least an elongated smooth-sided flash tube bore formed within said main body member closely adjacent said laser component and extending in substantially parallel relation to said component throughout the greater part of the length of said main body member, means closing said flash tube bore at its opposite ends and said bore being filled with an ionizable gas, a pair of electrodes carried by said body member adjacent said opposite ends and extending into said bore, optically finished surfaces formed upon the opposite ends of said laser component, at least one of said end surfaces having a relatively thin coating of material of such transmissive characteristics as to allow optical energy at the emission wavelength of said laser material to pass therethrough, a relatively thin layer of highly light-reflective heat-conductive material encircling said main body member throughout the greater part of the length thereof and disposed in intimate contacting relation with the exterior sidewall portions of said main body member, the peripheral shape of said exterior sidewall portions of said main body member and of said thin reflective layer thereon being such as to tend to reflect most of the pumping light generated within said flash tube bore during operation thereof toward said laser component.
Claim 10
Dependent Claim
306 words
An integral solid laser structure comprising a thin elongated laser component formed of glass containing an active laserable ingredient, a thin elongated main body member surrounding said laser component throughout the length thereof and formed of a glass transparent to optical energy of a predetermined pumping wavelength band for said laserable ingredient, said laser component having relatively smooth sidewall portions extending thrOughout the length thereof and disposed within said main body member so as to have all parts of said sidewall portions in fused integral relation with said main body member throughout the length thereof, pumping light source means comprising at least an elongated smooth-sided flash tube bore formed within said main body member closely adjacent said laser component and extending in substantially parallel relation to said component throughout the greater part of the length of said main body member, means closing said flash tube bore at its opposite ends and said bore being filled with an ionizable gas, a pair of electrodes carried by said body member adjacent said opposite ends and extending into said bore, optically finished surfaces formed upon the opposite ends of said laser component, at least one of said end surfaces having a relatively thin coating of material of such transmissive characteristics as to allow optical energy at the emission wavelength of said laser material to pass therethrough, a relatively thin layer of highly light-reflective heat-conductive material encircling said main body member throughout the greater part of the length thereof and disposed in intimate contacting relation with the exterior sidewall portions of said main body member, the peripheral shape of said exterior sidewall portions of said main body member and of said thin reflective layer thereon being such as to tend to reflect most of the pumping light generated within said flash tube bore during operation thereof toward said laser component.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |