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4317087 |
Apparatus for improving the working time of the XeBr laser
In XeBr lasers which make use of HBr as the source of bromine, it has been found that the working life of the laser is limited because of dissociation of the HBr in the lasing region to form H2 and...
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4316157 |
Gas recirculation system for carbon dioxide lasers
A method and apparatus is described for reducing the gas consumption rate by controlling the gas composition in a repetitively pulsed high pressure and/or high energy density TE CO2 laser....
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4232274 |
Metal vapor laser system
A metal vapor laser discharge system includes a metal vapor laser and its associated circuit. The metal vapor laser discharge system is provided with a laser vessel which includes a discharge...
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4229709 |
Laser device
A means is provided for continuously purging deleterious contaminants including water vapor, ozone and organic vapors from the resonant cavity of lasers where the resonant cavity is characterized...
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4224579 |
Metal vapor laser discharge tube
An internal mirror metal vapor laser, and in particular, a helium-cadmium laser discharge tube, which is economical, compact and has a relatively long operating and shelf life, the operating life...
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4206429 |
Gas dynamic mixing laser
A high power gas dynamic mixing laser capable of having an energizing gas formed by an exothermic decomposition process is disclosed. The laser includes a housing having a reaction chamber in which...
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4196401 |
Method and apparatus for injecting gas into a laser cavity
Laser gas injected into a multiple-pulsed electric discharge laser (EDL) must be removed as quickly as possible following each laser pulse. This `clearing time` can limit the average laser output...
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4196400 |
Gas laser chemical pump fluidization
An improvement to the chemical pump as currently used to pump a gas laser cavity is achieved by employing a chemical pump with a fluidized bed, i.e., a bed of particles of a reactive material...
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4188592 |
Closed cycle chemical laser
A closed cycle chemical laser adapted for continuous wave operation is disclosed. A first gas such as sulphur hexafluoride is decomposed by an electrical discharge means to provide at least some...
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4068196 |
Iodine gas laser device
A gas containing an active iodine compound is circulated through a laser tube, a purifying device and a gas reconstitution device. The active compound is consumed by lasing in the laser tube, waste...
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4031484 |
Portable chemical laser with gas recirculation
A chemical laser having means for repeatedly circulating the gaseous working medium in a portable, self-contained system is disclosed. An excited laser species is formed by chemical means and after...
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3970957 |
Flowing gas laser gas regeneration system
A gas laser including a discharge tube containing a gas mixture, the discharge tube having one or more inlets and an outlet, in which a reaction vessel is in communication with said outlet and with...
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3898586 |
Coaxial short pulsed laser
A ruggedized laser system capable of producing, in a field environment, light pulses on the order of 350 psec duration with a beam divergence on the order of 30 milliradians and a predictability in...
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3876957 |
Gas-ion laser with gas pressure maintenance means
A gas-ion laser is described including means to maintain the ionizable gas in the laser cavity at a rather constant pressure over an extended period of time to significantly increase the useful...
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3864646 |
CO chemical laser from ketene gas
A CO chemical laser, capable of producing stimulated laser emission having a wavelength between about 4.7 and about 5.9 microns, contains an enclosed optical resonant laser cavity containing CH2 CO...
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3810043 |
METHOD OF OPERATING CLOSED-CYCLE CARBON DIOXIDE LASERS IN WHICH CARBON MONOXIDE IS USED TO PREVENT DEGRADATION OF PERFORMANCE
A method of operating closed-cycle carbon dioxide flowing gas lasers in which a gaseous mixture typically comprising carbon dioxide, nitrogen and helium is electrically excited to produce lasing...
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3789320 |
GAS LASER CIRCULATION SYSTEM
A gas circulation system for a laser comprises a reaction vessel comprising an empty tube which may be heated to an appropriate temperature, and means for circulating the gas from the laser through...
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3688217 |
LASER COLD CATHODE ARRANGEMENT
A gaseous ion laser system includes a cold cathode disposed in an envelope portion so as to form a tight or dash pot fit therewith. A trigger electrode is in intimate contact with the exterior...
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3648194 |
SEMICLOSED CYCLE GAS LASER SYSTEM
A flowing gas laser system of the mixing type removes lasing gas from the laser effluent so as to recycle the remaining gas, such as a mixture of energizing gas and relaxant gas. Fresh lasing gas...
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3641385 |
GAS-FILLED DISCHARGE TUBE WITH GAS-REFILLING MEANS
A unit for supplying gas to a gas-filled discharge tube includes a gas container and a reservoir in communication therewith. The reservoir has an outlet portion and valve means are provided at the...
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3641457 |
HIGH-PERFORMANCE GAS LASER
Flowing gas laser systems of a variety of configurations, including exemplary CO2 --N2 --He systems, are provided with a critical amount of relaxant gas, determined by maximum differential between...
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3641455 |
METHOD AND MEANS FOR ACHIEVING CHEMICAL EQUILIBRIUM IN A SEALED-OFF CARBON DIOXIDE LASER
Chemical equilibrium and optimum operation in a sealed-off CO2 gas laser is maintained by replenishing the CO2 lost by dissociation into CO and O2 either directly by providing a source and getter...
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3613027 |
GAS LASER WITH COLD-CATHODE DISCHARGE
A gas laser utilizing a coaxial cold-cathode discharge tube having a large-surface cylindrical cold cathode disposed in a discharge vessel enclosing one end section of a relatively thin laser...
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3605036 |
METHOD AND APPARATUS FOR THERMOCHEMICALLY CONTROLLING THE GAS ATMOSPHERE OF A GAS COHERENT RADIATION GENERATOR
CaCO3 is located inside the optical cavity of a CO2 gas laser and is maintained at 680° C. to evolve CO2 to replenish the gas atmosphere of the laser with CO2 during operation. Titanium is located ...
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3597700 |
HIGH ENERGY GAS LASER PRODUCING A CONTINUOUS ABNORMAL GLOW DISCHARGE IN THE GAS MIXTURE
An energizing coil encircles a tubular light-resonating cavity containing a gas mixture, the pressure of the gas mixture and the ratio of the cavity inside diameter to the coil diameter having...
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3560789 |
GASEOUS ELECTRIC DISCHARGE TUBE INCLUDING A PLURALITY OF PUNCTURABLE GAS STORAGE CELLS
A replenishable gas discharge tube comprises a plurality of closed cells within the tube envelope, each cell containing a quantity of the ionizable gas, and means operable from outside the tube...
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3566304 |
GAS LASER PRESSURE CONTROL FOR MAINTAINING CONSTANT PRESSURE
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3424997 |
GAS LASER WITH GAS STORAGE ELECTRODE
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3392351 |
Gaseous laser employing an active vapor in equilibrium with a liquid coolant
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