Fully digital FPGA-based control
High-speed signal processing enables advanced locking techniques and precise system control.
Description
The Digital Diode Laser Controller is our next-generation controller for precision tunable lasers. It combines the ergonomic ease-of-use of our classic analogue DLC, with the flexibility and performance of a fully digital system.
It offers a combination of impressive performance and ease-of-use, using the front panel with high resolution display, or our comprehensive Windows app, or your own code using the simple text-based command language that we are famous for.
The dDLC is designed for the ultimate applications in quantum computing, quantum sensing, time and frequency standards, gas sensing, and spectroscopy.
The full list of features for the dDLC include:
- Fully digital with high-speed FPGA signal processing.
- Bullet-proof laser operation: can reset the microcontrollers without affecting laser lock.
- Current, temperature and piezo controllers with lowest commercially available noise and drift.
- Internal spectrum analysis with high dynamic range and bandwidth.
- Complex frequency feedback locking via FPGA signal processing. Side of fringe, top of fringe locking and auto-relocking (in development).
- Signal display oscilloscope functionality on device, with specific knobs to control key functions (diode current, laser frequency and span, input signal offset, slow and fast gain).
- Completely self-contained: tune and lock to atomic resonance without computer connection.
- Full device control using on-screen menu.
- Sophisticated and intuitive GUI for remote operation via TCP/IP or USB.
- Easy to use text-based control API; no DLL or drivers needed. Python, LabVIEW, matlab bindings and examples provided.
- Online user manuals, software updates, app notes; no login details required.
Ultra-low noise and drift performance
Integrated current, temperature, and piezo controllers deliver industry-leading stability.
Advanced locking and feedback
Supports multiple locking modes with auto-relocking capability (in development).
Integrated diagnostics and analysis
Built-in spectrum analysis and oscilloscope functionality for real-time system monitoring.
Standalone and remote operation
Operate directly from the front panel or via USB/TCP-IP using an intuitive GUI or text-based API.
Robust, uninterrupted operation
Controller resets do not disrupt laser lock, ensuring reliable long-term performance.
Features
- Intuitive fully featured controls for standalone operation
- Intuitive fully featured GUI for remote operation (TCP/IP or USB)
- FFT spectrum analyser built-in
- Oscilloscope functionality built-in
- Ultra-low noise current source
- Temperature controller
- Demodulator (lock-in amplifier)
- Feedback servos: locking is included
System Integration
The dDLC is designed as a central control platform for precision laser systems. It integrates seamlessly with our tunable lasers and external optical setups, providing both standalone operation and full remote programmability.