The D2-115 laser servo was designed for high-speed and low noise servo control of lasers. The PI2D loop filter, with a second integral feedback to boost low-frequency gain, provides tight locking to the error signal. Both side-lock and peak-lock modes are supported, with internal demodulation circuitry for peak-lock mode. Additionally, the D2-115 provides an internal ramp generator for sweeping the output and computer control to break lock and directly control the output voltage.
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