Coherent light generators – Particular component circuitry – Optical pumping
Patent
1995-01-05
1996-05-07
Scott, Jr., Leon
Coherent light generators
Particular component circuitry
Optical pumping
372 29, H01S 300
Patent
active
055153925
ABSTRACT:
The laser diode control circuit includes a laser diode, a photo diode, a transimpedance amplifier network, an inverting amplifier network, a comparison network, a transistor network, and a zener diode. The control circuit is designed for a single power supply. Preferably, the control circuit includes a power supply output compensation network to maintain a constant light output of a laser diode despite variations in voltage level of a voltage source. Preferably, the control circuit includes an input for a digital pulse train to pulse width modulate the light output of a laser diode.
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Eastman Kodak Company
Howley David A.
Jr. Leon Scott
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