Bandwidth
200 MHz

Scan frequency (up to)
1 MHz

DAC resolution
16-bits

Integrated oscilloscope
500 MSa/s

Moku:Lab’s Laser Lock Box enables you to lock a laser’s frequency to a reference cavity or atomic transition using high-performance modulation locking techniques. The Laser Lock Box includes a ‘Tap-to-Lock’ feature, enabling you to quickly lock to any zero-crossing on the demodulated error signal. It also features an integrated 2-channel oscilloscope, allowing you to observe signals at any point in the signal processing chain at up to 500 MSa/s.

Features

Stabilize a laser’s frequency to a reference cavity or atomic transition
Supported locking techniques include Pound-Drever-Hall (PDH) locking, Heterodyne offset phase-locking, RF locking, and Dither locking

Block diagram view of the signal processing chain
Clear overview of the laser locking to aid control and understanding

Flexible configuration of the demodulation source
Demodulate signals with internal or external local oscillators

Scan for resonances
Positive sawtooth, negative sawtooth or triangle waveforms

Integrated oscilloscope
Place virtual probes within signal processing chain to observe signals using an integrated oscilloscope

Tap-to-Lock
Quickly lock to any zero-crossing in the error signal using the ‘Tap-to-Lock’ feature

Post-demodulation filtering
Filter demodulated signals with up to fourth order infinite impulse response low-pass filters: Butterworth, Chebyshev, Inverse Chebyshev, Elliptic, Gaussian, Bessel, Legendre

Maintain frequency lock with two independent PID controllers
Individually configure high- and low-bandwidth PID controllers for fast and slow feedback

Custom controls
Quickly access the controls you need with a customizable control palette view

App Notes
PDH locking case study

Automated PDH Locking

Specifications

Local oscillator frequency
1 mHz to 200 MHz (3.55 µHz resolution)

Scan waveforms
positive sawtooth, negative sawtooth, triangle

Scan frequency
1 mHz to 1 MHz

Low-pass filter corner frequency
1 kHz to 14 MHz

Filter roll-off
6 dB / 12 dB per octave filter roll-off

Low-pass filter types
Butterworth, Chebyshev, Inverse Chebyshev, Elliptic, Gaussian, Bessel, Legendre

Coupling
AC/DC

Input impedance
50 Ω / 1 MΩ

Specs
Moku:Lab Spec Sheet

Manual
Laser Lock Box User Manual

Software integrations

Stabilize a laser's frequency to a reference cavity or atomic transition using high-performance modulation locking techniques from an intuitive iPad interface, or with Python, MATLAB, and LabVIEW.

The single-instrument solution for high-performance frequency stabilization

Moku:Lab replaces stand-alone waveform generators, phase shifters, demodulators, filters, and PID controllers. Its high-performance digital signal processing, powerful visualization, and flexible user interface delivers an all-in-one solution for laser frequency stabilization.

Block diagram view

Get a bird’s-eye view of your control system and observe signals anywhere in the signal processing chain using the integrated oscilloscope. Use conditional triggering, synchronized scanning, and configurable output limiters optimized specifically for cavity stabilization systems.

Tap-to-lock

Quickly lock to any zero-crossing in the error signal using the ‘Tap-to-Lock’ feature.

Custom controls

Quickly access the controls you need with customizable control palette view. Split screen access to the integrated oscilloscope lets you adjust parameters and observe your system’s response in real-time.

High performance

Direct digital down-conversion of frequencies up to 200 MHz sidesteps 1/f noise introduced by analog electronics. Precisely control demodulation phase with 1 millidegree accuracy. Ensure a clean error signal with Moku:Lab’s low noise input (< 30 nV/√Hz) and user-configurable low-pass filters.

Dual PID controllers

Individually configure high- and low-bandwidth PID controllers for fast and slow feedback. Tune the response in real-time from an intuitive interface.

Export data effortlessly

Export your data to Dropbox, SD Card, iCloud or e-mail. Moku:Lab can save an image of your screen or export your data in .CSV or .MAT formats.

LabVIEW, Python,
and MATLAB

Integrate Moku:Lab’s Laser Lock Box and its other instruments into your existing system using LabVIEW, Python, and MATLAB APIs.

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