ROC Autocorrelators

Pulse duration measurement made easy.

Optical autocorrelators are used to measure pulse duration of ultra-short laser pulses. The principle is to create two copies of the laser beam of interest with a beam splitter. The copies are superimposed in a nonlinear medium (SHG crystal), where they interact generating a third beam. As the overlap of the two copies depends on the pulse duration, analysing the third beam allows to calculate the pulse duration.

Single pulses and repetitive pulses

get immediate results even on single-pulses

Easy to Align

saves up to 90% time compared to conventional autocorrelators

Pulse measurement starting at 4 fs

accurate results on femtosecond and picosecond pulses

Product reviews

Among the autocorrelators we’ve used, MS‑ROC stands out. Setup was effortless and it delivered precise measurements right away. Femto Easy’s support is also top‑tier.

Yuki Ashida

SCREEN - Japan

Optical Engineer

ROC autocorrelator is quite accurate with much more data points and better fitting. And it is also quite easy to use.

Huang Zhou

Advanced Attosecond Laser Infrastructure, CAS - China

Professor

We use the ROC single-shot autocorrelator and the BeamPro laser beam profiler from Femto Easy. Those systems are robust and easy to use, hence perfect for a laboratory use with multiple users.

Laurent Gallais

Institut Fresnel - France

Professor

Menhir Photonics AG acquired a versatile Femto Easy multi-shot autocorrelator MS-ROC some time ago. This tool has been essential for accurate pulse duration measurements for multiple R&D projects. This version of the MS-ROC covers pulse durations from 50 fs to 40 ps. It is perfect for our high repetition rate, low pulse energy lasers.

Karolis Balskus

Menhir Photonics - Switzerland

Senior Laser Engineer

Thanks to the ease of use of the single-shot ROC Autocorrelator and the BeamPro Laser Beam Profiler, our approach of beam characterization changed dramatically. Given the speed with which reliable results can be obtained and the robustness of the devices, we now use our two Femto Easy instruments for the monitoring of several machines. Technicians can be trained on those devices within an hour thanks to the comprehensive, but non-daunting, manuals. The STAR software is excellent on its own right, and the API makes it simple to integrate Femto Easy devices in our interface.

Valentin Maffeis

HEF Groupe - France

Laser process R&D Engineer

The BeamPro and MS-ROC Autocorrelator are well equipped to characterize the fs laser for our research lab. The BeamPro provides good quality images and great tracking for beam stability. The MS-ROC has a clear design and is easy to align and measure the pulse width of the beam. The information is saved in convenient formats for further analysis. The STAR software has a clean and customizable interface, yet is packed with features. We appreciate how Femto Easy has implemented our suggestions for improving the software. We look forward to using this equipment for characterizing and monitoring our broad range output OPA and SHG beamlines as we build and use our pump-probe laser system for photoemission orbital cinematography.

Eric Fackelman

FZ Jülich - Germany

Researcher

The Radio and Optical Communications Lab at DCU acquired the MS-ROC autocorrelator to characterize optical frequency combs from 10 to 100 GHz for applications ranging from data center interconnects to THz generation. Its alignment-free operation achieved through a fibre coupled input to the autocorrelator significantly reduces the time to take our measurements compared to older autocorrelators.

Liam Barry

Dublin City University - Ireland

Professor

The femtosecond pulse duration measurement solution from Femto Easy (ROC autocorrelator) is easy to use, fast and reliable. The STAR software also establishes a new standard in terms of user friendliness and ease of use.

Pierre Deslandes

Helix Surgical - France

CTO, VP and Founder

Our new ROC autocorrelator has proven to be an excellent investment. I appreciate its user-friendly design, from the simple setup process to the intuitive software interface. Plus, its compact size is a definite bonus.

Patrik Grychtol

European XFEL - Germany

Researcher

The Femto Easy µ-ROC autocorrelator is a very compact and user-friendly device. It is easy to align and its compact size allows us to measure femtosecond pulses outside the laboratory where no optical table is available.

Senior Expert - Laser & Optics

Confidential Medical Company

Senior Expert

After working with conventional, bulky, and hard-to-operate autocorrelators, I was really impressed by how quick and easy it was to set up and use the µ-ROC. During maintenance and field service of complex ultrafast laser systems—especially on a tight schedule—such a compact and convenient autocorrelator is a must!

Algirdas Petrašiūnas

Tokyo Instruments - Japan

Service Engineer

The µ-ROC autocorrelator works like a charm! Very good experience, adjustment and full measurement of femtosecond pulses from Ekspla FemtoLux30 laser in just a few minutes – it was really femto easy …

Rokas Danilevičius

Ekspla - Lithuania

Chief Technical Officer

Spark Lasers develops and manufactures high-performance ultrafast lasers, renowned for their excellent pulse temporal quality. One of the keys to achieving this excellence lies in the metrology of our laser sources. To meet our demanding pulse quality goals, we extensively rely on Femto Easy technology. We utilize several systems (Fast FROGs, ROC autocorrelators) in both our R&D and Production departments. Their robustness, ease of use, and performance are instrumental to our daily operations.

Pascal Dupriez

Spark Lasers - France

CEO

Explore models:

ROC Autocorrelator single-shot

Pulse duration measurement with unmet user-experience

ROC (Row Optical AutoCorrelator) is a compact and robust inline setup to measure single-shot...

PRODUCT DETAILS

µ-ROC Autocorrelator single-shot

World smallest autocorrelator

Discover the autocorrelator in miniature form
The µ-ROC marks the start of a new era of...

PRODUCT DETAILS

MS-ROC Autocorrelator multi-shot

All-rounder to characterize pulse duration of repetitive fs- and ps-pulses

The MS-ROC (Multi-Shot Row Optical AutoCorrelator) enables pulse width measurement...

PRODUCT DETAILS

Software ROC

The Femto Easy software has been designed to be user friendly and intuitive. This is a modern software compatible with touchscreen that can run either under Linux or Windows. It allows distant control of the devices via PC, tablet or smartphone. We can also provide custom software developments upon request.

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