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
Pascal DupriezCEO - Spark Lasers - France
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.
Pierre DeslandesCTO, VP and Founder - Ilasis - France
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.
Beat JäggiActivity Manager Service - Lasea - Switzerland
We are using the ROC autocorrelator. The device is easy to align and perfectly suited for temporary installation in a machine, due to its compact size. In case of problems and questions, the customer support of Femto Easy is reactive and provides good solutions.
Valentin MaffeisLaser process R&D Engineer - HEF - France
Thanks to the ease of use of the single-shot ROC Autocorrelator, our approach of beam characterization changed dramatically. Given the speed with which reliable results can be obtained and the robustness of the device, we now use our Femto Easy instruments for the monitoring of several machines. The STAR software is excellent on its own right, and the API makes it simple to integrate Femto Easy devices in our interface.
Karolis BalskusSenior Laser Engineer - Menhir Photonics - Switzerland
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.
Laurent GallaisProfessor - Institut Fresnel - France
We use the ROC single-shot autocorrelator from Femto Easy. This systems is robust and easy to use, hence perfect for a laboratory use with multiple users.
ROC Single-Shot Autocorrelator
A single-shot autocorrelator measures both the pulse width of single pulses as well as repetitive pulses. Very compact and extremly easy to use. Only two minutes are necessary to get the measurement.
µ-ROC Single-Shot Autocorrelator
μ-ROC takes the ROC concepts to its limit for the measurement of single-shot and repetitive autocorrelation traces in the smallest housing footprint ever.
MS-ROC Multi-Shot Autocorrelator
A multi-shot autocorrelator is suitable to characterize repetitive pulses and is based on second order scanning autocorrelation principle. Measures pulses with energy as low as 50 pJ.
Discover the autocorrelator models of Femto Easy
The autocorrelators of our ROC series offer a wide variety of benefits: The ROC Single-shot accompanies you on every experimental adventure with plenty of comfort. The µ-ROC Single-Shot impresses with its ultralow compact size and high-quality workmanship and brings you directly into machines and lasers (OEM integration) thanks to innovative technology. The MS-ROC is suitable for broad pulse ranges and allows the measurement of pulses from 5 fs to 40 ps / 25 fs to 80 ps.
 |  |  |
|
|---|---|---|---|
ROC | µ-ROC | MS-ROC |
|
| Model type | |||
| Use case | |||
| Pulse duration | 70 fs - 3 ps / 100 fs - 5 ps / 300 fs - 10 ps | 50 - 1500 fs / 25 - 1000 fs | |
| Spatially-resolved measurements | Beam profile and pulse duration distribution over one diameter | Beam profile and pulse duration distribution over one diameter | n/a |
| Spectral range (nm) | 1020 - 1080 Yb | ||
| Size (mm) | L: 56 D: 195, 233 or 265 | L: 40 D: 45 | L: 194 D: 129 |
Software
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.
