Peak Lock Module

Fully integrated error signal generation package - RF source, detector interface, mixer, and filters in a single solution
Provides a dedicated error signal output for easy integration with an external laser servo controller
Ideal for all forms of top-of-peak locking; PDH, MTS, FM demodulation
Built-in low-pass filter options (200kHz, 3MHz, 10MHz, or no filter)
Fully adjustable demodulation phase (0.1° steps)
Large dynamic range on output power (up to +21dBm into 50Ω), suitable for driving low-Vπ modulators or lasers directly
Complete digital interface, controllable via USB
Simple, intuitive GUI

询价

Description

The Santec Peak Lock Module (PLM) is our comprehensive solution for error signal generation, designed for precision laser frequency stabilisation via modulation-based locking techniques such as Pound-Drever-Hall (PDH) and FM demodulation locking. Combining a tunable RF source, low-noise adjustable gain stages, phase-sensitive demodulation, and configurable low-pass filtering into a compact platform, the PLM provides all the essential tools required for high-performance, low-noise locking systems.

The PLM is a flexible, self-contained solution capable of directly driving Santec electro-optic modulators or laser current modulation inputs, making it easy to integrate into a wide range of experimental setups, from locking a resonant SHG cavity to the fundamental laser, to FM demodulation locking with Santec's digital DLC.

Applications

PDH locking to optical cavities
Modulation transfer spectroscopy of atomic transitions
FM demodulation of saturated absorption spectroscopy signals

Key Specifications

Parameter		Performance
RF frequency range		500kHz - 100MHz (10kHz steps)
Max RF output power		+21dBm into 50Ω
Phase control		0° - 360°, 0.1° steps
Photodetector input gain		–10dB to 20dB
Error signal output		Up to +10dBm into 50Ω
Low-pass filter options		200kHz, 3MHz, 10MHz, no filter
Connectivity		USB-C (digital control), SMA (RF out, PD in, error out)
Dimensions		150 × 75 × 36.5mm (W×H×D), 722g

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.