Temperature control device for a semiconductor laser

Details Temperature control device for a semiconductor laser Temperature control device for a semiconductor laser

1985-07-08

1986-02-18

Sikes, William L.

Coherent light generators

Particular temperature control

Heat sink

357 87, H01S 304, H01S 3045

Patent

active

045717281

ABSTRACT:
A temperature control device for a semiconductor laser comprises a temperature sensitive resistor for detecting the temperature of a semiconductor laser and a Peltier element connected to the semiconductor laser and controlled, with regard to the direction of its heat transmission, in accordance with the resistance value of the temperature sensitive resistor. A single power source of a single polarity low voltage is used as a power source for the Peltier element. The current generated from the single polarity power source has its polarity changed by a bridging amplifier controlled by the resistance value of the temperature sensitive resistor and is supplied to the Peltier element.

REFERENCES:
patent: 4399541 (1983-08-01), Kovats et al.
Wittke, et al; RCA Technical Notes; "Stabilization of CW Injection Lasers"; TN No. 1005; Apr. 9, 1975.

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