Streamlining your optics and photonics research

Aspects of optical experiments, from equipment integration to calibration to Pound-Drever-Hall locking, can be tedious and time-consuming. Moku can help you get your experiments up and running faster, adapt to your specific needs, and save you that time for the work you'd rather be doing.   

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Measure phase more accurately

We know that precise phase measurements can be tricky. Download our ebook to learn more about how to use Moku to overcome common challenges in phase measurement. 


A test platform that adapts to your needs.


FPGA-based Moku devices integrate a full suite of 14 software-defined instruments, giving you a tool for every situation. Alongside tools crucial for optics and photonics, like the Laser Lock Box, Phasemeter, and Lock-in Amplifier, and Time & Frequency Analyzer are  common test essentials such as an Oscilloscope, Spectrum Analyzer, and Waveform Generator. Run multiple instruments side-by-side in Multi-instrument Mode, or deploy your own custom algorithms with Moku Cloud Compile.  

Seamless lock-in detection

Utilize the 4-channel, 600 MHz Lock-in Amplifier for multiple frequencies or harmonics, and output the demodulated signal to use in a feedback loop or PLL. Achieve ultra-low noise performance with 10-bit and 18-bit blended ADCs.

Painless laser locking

Easily lock lasers to a cavity using the PDH method with the Laser Lock Box, which combines the functionality of a Lock-in Amplifier and PID controller. With Lock Assist, you can instantly lock to any zero-crossing on the demodulated error signal with a single click.

Lossless event counting

Whether you're performing photon counting or free-space optical communications, utilize the 4-channel Time & Frequency Analyzer to detect photon events, generate time interval statistics, and output histogram data - all with zero dead time.

Faster optical PLLs

The Moku Phasemeter enables you to auto-lock onto an input frequency and  visualize phase, frequency, and amplitude over multiple channels, all while recording with an embedded data logger. With the ability to output phase-locked signals, your optical PLLs just got a lot easier to implement. Watch the video to learn more.

Engineered for demanding photonics applications

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, Phasemeter, and Time & Frequency Analyzer cover applications such as:

  • Laser frequency stabilization with PDH locking
  • Mach-Zehnder interferometry
  • Gravitational wave detection
  • Hanbury, Brown and Twiss interferometry

Your research keeps advancing. So does Moku. 

We continually update our software with new features, so your Moku device gets better over time. Check out our latest upgrades for Moku:Lab, Moku:Pro, and Moku:Go to enable multi-window viewing, strengthen API support, improve the capabilities of multiple software-defined instruments, and support a broader range of use cases for closed-loop control systems, spectroscopy, laser frequency stabilization, and more. 


Compare hardware platforms

Explore Moku hardware options. Compare the instrument specs to choose the right device for your application.

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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.