High-bandwidth dual-loop control
Independent fast (current) and slow (piezo) feedback loops for precise stabilisation.
- FSC
Fast Servo Controller
- Dual-loop fast + slow feedback control
- High-bandwidth PID stabilisation
- Real-time front-panel tuning
- Compatible with diode and ECDL systems
- Ideal for linewidth and frequency control
Description
Ultra-fast feedback control for high-bandwidth laser stabilisation
The FSC from Santec is a high-bandwidth PID servo controller designed for precision laser locking and linewidth reduction. With separate fast and slow feedback loops, it provides fine control over laser frequency stabilisation.
Designed for intuitive operation, the FSC allows rapid optimisation of feedback parameters using front-panel controls, making it ideal for demanding stabilisation tasks.
Optimised for laser locking applications
Supports cavity locking, linewidth narrowing, and beat-note stabilisation.
Intuitive front-panel control
Dedicated knobs allow real-time adjustment of critical feedback parameters.
Wide system compatibility
Works with lasers supporting current modulation and piezo control.
Integrated photodetector support
Can power compatible photodetectors such as our PDA030.
Applications
- Laser frequency stabilisation
- Optical cavity locking
- Linewidth narrowing
- Beat-note and offset locking
- Precision spectroscopy
System Integration
The FSC integrates with diode laser systems and external drivers to provide high-speed feedback control. It is typically used alongside laser controllers and photodetectors in advanced stabilisation setups.