Semiconductor laser apparatus

Details Semiconductor laser apparatus Semiconductor laser apparatus

1979-10-24

1982-07-06

Davie, James W.

Coherent light generators

Particular temperature control

Heat sink

357 19, 357 74, 357 81, 372 29, 372 44, H01S 319

Patent

active

043385770

ABSTRACT:
Semiconductor laser apparatus wherein a semiconductor laser device and a temperature sensor for sensing the temperature of the laser device are mounted on a heat sink or base and airtightly encapsulated. In one embodiment the heat sink or base is mounted on temperature control apparatus which in turn is electrically controlled in response to the output from the temperature sensor. In another embodiment, a laser beam intensity sensor whose output varies over a wide range depending upon an environmental temperature is also temperature controlled so that the semiconductor laser apparatus may be controlled with a higher degree of accuracy.

REFERENCES:
patent: 3582324 (1971-06-01), Kunert et al.
patent: 3840889 (1974-10-01), O'Brien et al.
patent: 4058821 (1977-11-01), Miyoshi et al.
Wittke et al., "Stabilization of CW Injection Lasers, RCA Technical Notes," TN No. 1005, Apr. 1975, pp. 1-3.

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