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The Phase Generator board was
designed as part of a complete four-channel phase
detection system aimed as a measurement solution for the
derivative spectroscopy market. The complete system
consists of three printed circuit boards that can be
mounted in a piggyback fashion in order to form a
compact measurement solution.
The system consists of the following
printed circuit boards;
Phase Generator Board; The function of this PCB is to
generate stable TTL pulse trains that can be used to
control the Phase Sensitive Detector circuitry. In
addition an 8 bit sine wave function synchronously
locked to the fundamental TTL pulse train is made
available for laser current modulation.
Phase Sensitive Detector Board; The function of this
PCB is to provide four-channel phase sensitive detection
of incoming signals. This circuitry will accommodate a
sensing channel (f and 2f signal demodulation) and a
reference/lock channel (f and 3f signal demodulation)
Laser diode driver board (currently not
available as customers tend to prefer to use their own) |
