PDH

• High-bandwidth Pound-Drever-Hall (PDH) error signal generation
• Designed for ultra-stable laser frequency locking
• Fully integrated into the DLC pro digital laser controller
• Internal high-frequency (HF) modulation source
• Two-channel operation
• Switchable modulation frequency: 5 MHz or 25 MHz
• Precise top-of-fringe locking to optical cavities or reference media
• Compatible with PID-based laser stabilization
• Fast lock acquisition and robust operation
• Suitable for high-resolution spectroscopy, precision metrology, and quantum optics

The Pound-Drever-Hall detector PDH is a built-in module of the DLC pro and serves to lock a diode laser to a maximum absorption or transmission of a reference medium (e.g. an optical resonator). The PDH features an internal HF modulation source for modulating the diode laser frequency. The signal from the reference is detected and demodulated phase sensitively to produce a high bandwidth dispersive error signal that can be used to lock the laser using a PID controller.

Module Type: Pound-Drever-Hall (PDH) Detector
Integration: Built-in module for DLC pro
Channels: 2
Modulation Frequency: 5 MHz or 25 MHz
Error Signal: High-bandwidth dispersive error signal
Locking Method: Top-of-fringe locking
Reference: Optical cavity or reference medium
Controller: PID controller
Modulation Source: Internal HF modulation source

• High-Resolution Spectroscopy
• Precision Laser Frequency Stabilization
• Optical Cavity Locking
• Narrow-Linewidth Laser Systems
• Quantum Optics
• Rydberg Atom Excitation
• Optical Quantum Clocks
• Precision Metrology
• Frequency Reference Systems
• Quantum Physics Research