Accelerate optics and photonics research

Streamline your optics and photonics research with flexible, FPGA-based Moku solutions engineered for faster, easier lock-in detection, laser locking, and optical PLLs.


Performance and versatility to advance discovery

Moku:Pro integrates crucial instruments for laser stabilization and measurement, like the Laser Lock Box and Lock-in Amplifier, while also providing test essentials such as the Oscilloscope and Waveform Generator. Thanks to the software-defined, multi-instrument platform, it's easy to integrate custom algorithms into your test sequence.

Lock-in detection

Utilize the 4-channel, 600 MHz Lock-in Amplifier for multiple frequencies or harmonics. Achieve ultra-low noise performance with 10+18-bit blended ADCs.

Laser locking

Easily lock lasers to a cavity using the Laser Lock Box. With Lock Assist, you can instantly lock to any zero-crossing on the demodulated error signal.

Optical PLLs

The integrated PID controller enables easy laser frequency stabilization and phase locking. Adjust parameters and view results in real time to optimize closed-loop control.
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Get your experiment up and running, faster

The Moku Laser Lock Box supports Pound-Drever-Hall (PDH) locking, heterodyne offset phase-locking, RF locking, and dither locking. Combine the Laser Lock Box with additional instruments in Multi-instrument Mode to further tailor your instrumentation to your research without needing to buy additional equipment. Watch the video to learn about the Laser Lock Box from our Chief of Hardware.



With Moku:Pro, you have access to multiple pieces of advanced optics instrumentation in one device. Deployed standalone or in Multi-instrument Mode, the Lock-in Amplifier, Laser Lock Box, and Phasemeter cover applications such as:

• Gravitational wave detection system development
• Interferometry
• Laser frequency stabilization

• Precision spectroscopy
• Stimulated Raman scattering (SRS) microscopy

HubSpot Video

We've got you covered


PDH Technique with the Moku:Lab Laser Lock Box

Learn how to replace complicated laser-locking devices with a next-generation Moku:Lab device and use the Pound-Drever-Hall (PDH) technique to lock a laser to a cavity.

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Using Moku:Pro for photonics IC control system research at Intel Labs

Discover how researchers at Intel Labs are using the Moku:Pro Lock-in Amplifier to advance the field of photonics integrated circuits (PICs) while saving time and reducing experimental complexity.


Stimulated Raman scattering (SRS) microscopy using the Moku:Lab Lock-in Amplifier

Learn how to use the Moku:Lab Lock-in Amplifier in stimulated Raman scattering (SRS) microscopy applications.

About Liquid Instruments

Liquid Instruments delivers modern, software-defined test and measurement solutions that provide advanced capabilities, a great user experience, and custom programmability for maximum flexibility and performance in a range of applications.

Compare hardware platforms

Explore the Lock-in Amplifier, Laser Lock Box, and Phasemeter options. Compare the instrument specs to choose the right device for your application.



12526 High Bluff Drive
Suite 150
San Diego, CA 92130

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