Coherent light generators – Particular temperature control
Patent
1990-07-06
1992-04-14
Epps, Georgia
Coherent light generators
Particular temperature control
372 36, 372 35, 357 74, 357 81, 357 82, H01S 304
Patent
active
051054299
ABSTRACT:
A laser diode array is disclosed that includes a plurality of planar packages and active cooling. The laser diode array may be operated in a long duty cycle, or in continuous operation. A laser diode bar and a microchannel heat sink are thermally coupled in a compact, thin planar package having the laser diode bar located proximate to one edge. In an array, a number of such thin planar packages are secured together in a stacked configuration, in close proximity so that the laser diodes are spaced closely. The cooling means includes a microchannel heat sink that is attached proximate to the laser bar so that it absorbs heat generated by laser operation. To provide the coolant to the microchannels, each thin planar package comprises a thin inlet manifold and a thin outlet manifold connected to an inlet corridor and an outlet corridor. The inlet corridor comprises a hole extending through each of the packages in the array, and the outlet corridor comprises a hole extending through each of the packages in the array. The inlet and outlet corridors are connected to a conventional coolant circulation system. The laser diode array with active cooling has application as an optical pump for high power solid state lasers. Further, it can be incorporated in equipment such as communications devices and active sensors, and in military and space applications, and it can be useful in applications having space constraints and energy limitations.
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Beach Raymond J.
Benett William J.
Mundinger David C.
Carnahan L. E.
Epps Georgia
Moser William R.
Sartorio Henry P.
The United States of America as represented by the Department of
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