Fast servo controller FSC
"Please can I get a quote for the fast servo lock? We borrowed one and managed to get our SolsTiS locked to a ULE cavity within an hour so I am super impressed with it!"
The FSC is an ultra-fast PID servo controller for high-bandwidth laser locking, with separate control loops for fast (current) and slow (piezo) feedback for complete control of laser frequency. The control loop can be optimally tuned for cavity locking, linewidth narrowing or beatnote offset locking applications.
Compatible with all laser heads that include direct injection modulation (such as the CEL or CEF) and drivers that include external piezo control (such as the DLC).
A low-noise 30MHz photodetector is also available, which can be powered directly from the FSC.
Simplified Bode schematic showing operation of FSC servo loops and adjustable parameters