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Dave's Circuits
Circuits designed by David Johnson, P.E.

Master Category List - Dave's Circuits
 Last Updated on: Friday, August 29, 2008 02:34 PM


Laser Circuits
MODULATED LASER DIODE TESTER
This circuit can either be used to test laser diodes or as a general purpose modulated light source. The circuit has an adjustable diode threshold current and an adjustable modulation frequency. The frequency can be adjusted from below 30KHz to above 50MHz. It is powered from a 9v battery.

Click on Drawing Below to view PDF version of Schematic

Circuit GaAIAs Laser Diode Test

Laser Circuits

Master Schematic Category List - David A. Johnson, P.E.

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