Measured the tuning coefficient of the laser crystal temperature for Prometheus S/N 2011B
(the one that was removed from EndX a week or so ago).

    The tuning coefficient is ~2.72 GHz/V for the green light and is fairly constant for
laser crystal temperatures from 24 degC to 34 degC.

    Increasing the laser crystal temperature decreases the laser frequency.  Increasing the
diode current also decreases the laser frequency.