Light emitting device package having combined heater/cooler

Details Light emitting device package having combined heater/cooler Light emitting device package having combined heater/cooler

1981-02-17

1983-08-16

Sikes, William L.

Coherent light generators

Particular temperature control

Heat sink

372 6, 372 12, 350 9614, H01S 304

Patent

active

043995411

ABSTRACT:
A known electro-optic has a semiconductor laser, a temperature sensor for controlling an electrically operated cooler, and an optical fiber end portion anchored close to the laser to receive light from it. Usually the fiber is anchored by a mass of cured epoxy. This invention proposes anchoring the fiber in a mass of fusible alloy which is melted and solidified using a Peltier effect device which is driven with one polarity current to function as a heater and with a reverse polarity current to function as a cooler. Once the package is complete and the laser is operating, the temperature sensor together with the Peltier effect device functioning as a cooler are used to cool the laser.

REFERENCES:
patent: 3296033 (1961-10-01), Scuro et al.
Wittke et al., "Stabilization of CW Injection Lasers," Technical Notes, No. 1005 (RCA) Apr. 1975, Princeton, N.J.
Dufft et al., "A Hermetically Encapsulated AlGaAs Laser Diode," Conference; Proceedings of the 30th Electronic Components Conference, San Francisco, CA. USA, p. 28-30, Apr. 1980.

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