Laser 2000

Laser Lock Box


Available on Moku:Lab, and Moku:Pro hardware

Liquid Instruments

Laser Lock Box

The Moku Laser Lock Box is a complete, FPGA-based laser locking system. It replaces multiple separate components with a single, easy-to-use device, reducing distortion and insertion loss and simplifying the locking process.

The Laser Lock Box provides an array of customisation and automation features to quickly and precisely lock your laser.

Below is the Laser Lock Box’s user interface showcasing some of the key features explained below:

Key Features of the Laser Lock Box:

High-performance frequency stabilisation without the clutter

The Moku Laser Lock Box replaces all the constituent pieces of a laser locking system — waveform generators, phase shifters, demodulators, filters, and PID controllers — minimising the physical footprint and reducing cost.

With high-performance digital signal processing and an easy-to-use interface, Moku delivers an all-in-one solution for laser frequency stabilisation.


Block diagram view for enhanced efficiency

Visualize and configure your control system and observe every step in the signal processing chain using the embedded Oscilloscope.

Use options such as conditional triggering, synchronised scanning, filtering, and configurable output limiters — all designed specifically for cavity stabilisation systems.


Reconfigurability to adapt to your locking technique

From PDH locking to dither locking, integrate the Laser Lock Box in with your setup for faster, easier stabilisation. Easily lock lasers to a cavity with limited manual intervention using Lock Assist. Tap to instantly lock on to any zero crossing on the demodulated error signal.


Optimised for optics labs

With Moku software for iPad and Apple Vision Pro, you’re not tethered to your workstation. Move freely throughout the lab, adjust optical components, and debug your system before locking. Switch back to the desktop app for monitoring or data collection and analysis.


Easily integrate into your preferred software

API integration with Python, MATLAB, and LabVIEW allows straightforward automation of the Moku Laser Lock Box in complex setups or for repetitive tasks. Save your measurements, screenshots, traces, and other settings locally or directly to the cloud.



  • Quantum optics
  • Raman spectroscopy
  • Gravitational wave detection
  • Atomic physics
  • Dark matter detection

The Laser Lock Box runs on Moku:Go, Moku:Lab and Moku:Pro. You can compare the platform specifications below:

Laser Lock Box
Laser Lock Box
Laser Lock Box
Input channels
2 2 4
Demodulation frequency
1 mHz to 30 MHz 1 mHz to 200 MHz 1 mHz to 600 MHz
Scan frequency
up to 10 MHz up to 10 MHz up to 10 MHz
Adjustable filter
260.1 Hz to 3.516 MHz 1 kHz to 14 MHz 2.6 kHz to 35 MHz
DAC resolution
12 bits 16 bits 16 bits
Integrated Oscilloscope
125 MSa/s 500 MSa/s up to 1.25 GSa/s
Software & Utilities
Windows, macOS, iPadOS, and visionOS apps
API support for Python, MATLAB, and LabVIEW
Windows, macOS, iPadOS, and visionOS apps
API support for Python, MATLAB, and LabVIEW
Windows, macOS, iPadOS, and visionOS apps
API support for Python, MATLAB, and LabVIEW
Laser Lock Box Datasheet - Moku:Lab
Laser Lock Box Datasheet - Moku:Pro
Laser Lock Box Datasheet - Moku:Go
Laser Lock Box User Manual - Moku:Lab
Laser Lock Box User Manual - Moku:Pro
Laser Lock Box User Manual - Moku:Go

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If you’re interested in the products shown here, or have questions about something you can’t find on our website, please get in touch through the form below.

Our knowledgeable sales team will be happy to help. We can normally source exactly what you need, or work with you to come up with custom solutions.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to the Photonics team.


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