FPGA-Based Feedback Control for Quantum Optics
Control at the
Speed of Light
FPGA-native feedback control for optical quantum research. Kerr-comb and EO-comb stabilization, cavity locking, and quantum-limited measurement — with sub-microsecond loop latency and no proprietary software.
FPGA Clock Rate
Loop Latency
ADC Resolution
Controller Rate
See it in Action
Watch a demonstration of our FPGA-based feedback controller in real-time.
Engineered for Precision
Every component of the signal chain is designed for maximum performance and minimum latency.
FPGA-Native Processing
All signal processing runs directly on the Xilinx Zynq FPGA at 125 MHz clock rate. No CPU bottleneck, no OS jitter — deterministic real-time control.
Lock-in Amplification
Quadrature demodulation via DDS and 6-stage CIC decimation. Extract PDH error signals and phase-sensitive measurements buried deep in noise.
Real-time PID Control
Fixed-point PI/PID controller with configurable gains and anti-windup. Designed for cavity locking, comb stabilization, and multi-loop optical systems.
Web-Based Control
Real-time oscilloscope display, parameter tuning, and Allan deviation analysis — all from your browser. No proprietary software needed.
Signal Chain Architecture
Open-source reference implementation from our RedPitaya-FPGA repository. RTL in modeling/, web interface in rp_web/.
Have a locking problem?
Whether you are stabilizing a Kerr-comb, locking a cavity, or designing a custom control loop for a demanding optical system, we can help.
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