Temperature stabilization of laser diodes and light emitting dio

Details Temperature stabilization of laser diodes and light emitting dio Temperature stabilization of laser diodes and light emitting dio

1989-07-21

1991-05-07

Laroche, Eugene R.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

330289, 330296, 315291, H05B 4136, H03F 304

Patent

active

050139711

ABSTRACT:
The optical power emitted from a light energy producing diode is stabilized over temperature using a simple bias circuit consisting of a voltage source with a series resistance or a current source with a shunt resistance. The bias circuit resistance is equal to the slope of the bias line formed by the constant optical power bias points of the diode plotted on a voltage versus current graph. The voltage source or current source value in the bias circuit is equal to the zero current or zero voltage intercept value, respectively.

REFERENCES:
patent: 4529949 (1985-07-01), de Wit et al.
Handbook of Modern Electronics and Electrical Engineering, Charles Belove--A Wiley-Interscience Publication, John Wiley & Sons, TK7825.M38, 1986, pp. 256 & 263.
Patent Abstracts of Japan, vol. 11, No. 148 (E-506) [2595], May 14, 1987; & JP-A-61 287 280 (Hitachi Ltd) 17-12-1986 (Whole Document).
W. Schmidt et al.: "Optoelektronik kurz und bundig", 1975, pp. 130-131, Vogel-Verlag, Wurzburg, DE, pp. 130-131; FIG. 5.25.
Patent Abstracts of Japan, vol. 6, No. 189 (E-133) [1067], Sep. 28, 1982; & JP-A-57 102 085 (Nippon Denshin Denwa Kosha) 24-06-1982 (Whole Document).
Siemens-Bauteile-Informationen, vol. 11, No. 1, Apr. 1973, pp. 14-15, Munich, DE; F. Keiner et al.: "Einfache Schaltung zum eliminieren des Temperaturkoeffizienten von Lumineszenzdioden".
Patent Abstracts of Japan, vol. 6, No. 155 (E-125) [1033], Aug. 17, 1982; & JP-A-57 76 884 (Fujitsu K.K.) 14-05-1982, whole document.

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