Abstract:
A laser control system was designed and constructed in this work.
Diode laser with wavelength 670nm and output power 1mW was used to
operate the 555 timer and JK flip-flop for a different time intervals. The time
high had been calculated and measured through the capacitor value of the
circuit.
The response of the electronic circuit was tested to work with
different lasers. (i.e. He-Ne laser 632.8nm with output power 1mW, diode
laser 820nm with output power 75mW, and using the diode laser 670nm,
with output power 1mW).
The electronic circuit was responded for all the lasers with wavelength
in the visible portion only.
To operate the circuit by a single laser wavelength, a suitable filter
was selected, then the circuit had been operate with the diode laser 670nm
only.
This means that the electronic circuit was controlled and operated
using one laser as switch.
.laser (670nm), was 50meter
