Technical Deep Dive

Purpose-Built for Quantum Measurement

Our stack combines AMD Xilinx RFSoC platforms with the custom SDK and custom RFMC daughter-cards to simplify quantum measurement and control workflows.

System Architecture

End-to-end signal flow from photon detection to quantum control

1

SPAD Detector

Single-photon avalanche diode captures individual photons

  • Single photon sensitivity
  • Fast pulse output
  • Low-noise operation (device-dependent)
2

RFMC Card

Custom daughter-card for signal conditioning

  • DC-coupled input
  • 50Ω impedance
  • Rogers 4350B substrate
3

RFSoC

AMD Xilinx platform for high-speed processing

  • High-speed ADC/DAC
  • Zynq UltraScale+
  • Real-time processing
4

Control Software

Customized Quantum instrumentation control SDK

  • Python API
  • Pulse sequencing
  • Real-time feedback

Technical Specifications

An early-stage, capability-focused view of our architecture vs common rack-style stacks

Detection

SpecificationPhotoncoreTraditional
Timing Resolution
Low-jitter design
Varies by setup
Detector Compatibility
Designed for SPAD-class inputs
Often custom
Noise Handling
Signal-conditioning focused
Depends on stack

Processing

SpecificationPhotoncoreTraditional
Digitization
High-speed ADC/DAC via RFSoC
External instruments
Real-time Processing
FPGA-based
Often CPU/PCIe-bound
Feedback Path
Low-latency architecture
Higher integration overhead

Integration

SpecificationPhotoncoreTraditional
Form Factor
Single board
Equipment rack
Cost
Designed to reduce total stack cost
Often expensive
Software
custom SDK
Proprietary
Proprietary Hardware

Custom RFMC Daughter-Card

Our proprietary RFMC (RF Mezzanine Card) provides the critical interface between SPAD detectors and the RFSoC platform, engineered for optimal signal conditioning and minimal timing jitter.

Rogers 4350B Substrate

High-frequency laminate material providing excellent signal integrity and controlled impedance at RF frequencies.

DC-Coupled Input

Direct coupling eliminates signal degradation from AC coupling capacitors, preserving pulse timing accuracy.

50Ω Impedance Control

Precision controlled impedance traces ensure maximum power transfer and minimize signal reflections.

EMI Shielding

Integrated electromagnetic interference shielding for clean signal acquisition in noisy environments.

RFSoC card

Integration Benefits

A complete paradigm shift in how quantum measurement infrastructure is deployed

Replaces Entire Equipment Rack

Traditional quantum measurement setups require oscilloscopes, arbitrary waveform generators, and custom timing electronics. Our integrated solution consolidates everything into a single board.

Low-latency Feedback Workflows

A low-latency signal path helps enable fast feedback workflows that many quantum control and characterization tasks depend on.

Software-Defined Flexibility

The custom SDK provides a Python-based interface for full control over pulse sequences, enabling rapid prototyping and experimentation without hardware changes.