Temperature controlled laser diode package

Details Temperature controlled laser diode package Temperature controlled laser diode package

1991-09-13

1993-03-16

Scott, Jr., Leon

Coherent light generators

Particular temperature control

372 36, H01S 304

Patent

active

051951029

ABSTRACT:
The invention temperature controlled package comprises a case having sidewalls that form a closed perimeter; a cover; and a base having an input surface and an output surface. The sidewalls are integrally coupled to the base input surface to define an interior region. A heatsink has a top surface and a bottom surface. The heatsink bottom surface is attached to the input surface of a thermoelectric cooler. The bottom surface of the thermoelectric cooler is coupled to the base input surface of the case. The thermoelectric cooler responds to a control signal to move heat from the thermoelectric cooler input surface to the thermoelectric cooler output surface. In a first alternative embodiment, a laser diode coupled to the heat sink responds to an electrical input signal to providing an optical laser output signal. The optical output of the laser diode is coupled via a optical fiber through a fiberoptic feedthrough in a sidewall. The interior region is filled with xenon gas. A cover is welded on the sidewalls to form a sealed interior region with xenon gas therein. The xenon gas limits the movement of heat from the interior surface of the sidewalls and the interior surface of the cover to the surfaces of the thermoelectric cooler.

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patent: 4631728 (1986-12-01), Simons
patent: 4689659 (1987-08-01), Watanabe
patent: 4727554 (1988-02-01), Watanabe
patent: 4792957 (1988-12-01), Kollanyi
patent: 4803689 (1989-02-01), Shibanuma
patent: 5005178 (1991-04-01), Kluitmans et al.
patent: 5031184 (1991-07-01), Greve et al.
patent: 5068865 (1991-11-01), Ohshima et al.
patent: 5105429 (1992-04-01), Mundinger et al.
patent: 5118964 (1992-06-01), McArdle

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