Coherent light generators – Particular active media – Gas
Patent
1998-06-05
2000-04-11
Bovernick, Rodney
Coherent light generators
Particular active media
Gas
H01S 322, H01S 3223
Patent
active
06049557&
ABSTRACT:
A continuous wave photolytic iodine laser has a gain cell for receiving a continuous supply of gaseous fuel. The gain cell is connected to laser beam transfer optics, a laser resonator for shaping a laser beam, and a lamp. The lamp is driven by a microwave subsystem such that a laser gain medium is pumped through the gain cell. The continuous wave photolytic iodine laser of the present invention incorporates a closed loop fuel system for presenting gaseous fuel to the gain cell at a rate sufficient to sweep any lasing by-products out of the gain cell, thereby preventing quenching of the lasing process. The fuel system also includes a condenser for converting the gaseous fuel to a liquid after it has passed through the gain cell, a scrubber for removing the by-products of the lasing process from the fuel, and an evaporator for converting the recycled liquefied fuel back to a gas. The closed loop fuel system also includes a pump for pressurizing and transporting the liquefied fuel. Provision of pulsed, high energy ultra-violet radiation to the interior gain modules provides a pulsed photolytic iodine laser with a plurality of gain modules, generating very high energy/high power laser output radiation pulses. These output pulses from a laser with a plurality of gain cells can be a frequency greater than 1 Hz.
REFERENCES:
patent: 5260961 (1993-11-01), Zhou et al.
patent: 5425044 (1995-06-01), Schlie et al.
Cunningham Philip R.
Rathge Robert D.
Schlie LaVerne A.
Bovernick Rodney
Wise Robert E.
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