As a customer of Femto Easy, I really appreciate the wavelength flexibility of their FROG systems so that measurements can be performed in different wavelength domains using a single system. Special efforts were made to find the best solution for my needs and to optimize the system’s performance. The FROG software is very advanced and allows a detailed analysis of the measurement data. Finally, I also really value the fast response I receive from Femto Easy customer support in case of questions.

A few years ago, I had the privilege of testing the very first FROG prototype that Antoine delivered using his motorcycle at the time. Now, on a different continent, I regularly work with the FROG at 1030 nm. Being in an RD lab, the flexibility to move the measurement device without the inconvenience of extensive realignment is simply fantastic.
We use this equipment regularly, and the amplitude and phase reconstruction occur swiftly and with high precision. The single-shot feature has revolutionized our experiments by enabling us to actively and instantly cancel the residual spectral phase reconstructed by the algorithm, while simultaneously feeding our TPSR (tunable pulse stretcher) in real-time. The Femto Easy team is always there for us, ready to address our inquiries and provide assistance – something we truly appreciate.

I’m in charge of an instrumental platform comprising several experimental benches based on multiple femtosecond laser sources (35-200 fs, 400 nm to 2.6 µm wavelength). I therefore purchased two Femto Easy products (a beam profiler and a single-shot FROG) to characterize the beams. Their wavelength flexibility, ease of use and speed are real assets. We regularly use the FROG when building new setups to check the evolution of our pulse widths or to adjust our pre-compensation setups. Those instruments have become essential tools on our platform.

I am very happy with the Femto Easy FROG device. The ease of use and the software are absolutely great for fast lab work. I was especially successful in a project where our classic autocorrelator was performing badly due to saturation effects at low frequencies and I had no problems whatsoever using this device. My main use is compressor adjustment and the live measurement is great for that as well.

Our FROG system has been working amazingly !  We found the interface user-friendly and simple to use.

The single-shot FROG is an ideal solution for characterization of kHz Ti:Sapphire amplifier with pulse duration of around 30 fs (achromatic design by using a bimirror). I particularly appreciated the consideration of my specific request on the wavelength range in order to characterize both the pump laser and the OPA signal. If the quality of the software is often highlighted, I also valued the overall finish of the device and its mechanical parts.

The MS-FROG-SP system has been in regular use at CSIR-CGCRI since its installation. It was installed using CSIR in-house developed sub-100 fs fiber laser and the installation went flawlessly, ticking everything on the test report. Presently, the system is delivering excellent performance in sub-100 fs pulse characterization.

With the Femto Easy FROG we went from unboxing to in-depth system learning in less than 1 hour. The system is intuitive to align and operate when compared to other similar systems in our facility.

The Femto Easy MS-FROG is a reliable and easy usable tool to characterize our high repetition rate (250 MHz) femtosecond pulses at 1550 nm. The fiber coupling ensures a straightforward measurement and the software allows a fast retrieval of the pulse duration and spectral phase. We mainly use it during our laser production. Also great thanks for the fast and helpful communication and support.

We have been using our MS-FROG with great satisfaction. Compared to other FROG systems we’ve worked with, the Femto Easy system demonstrates significantly better contrast and exceptional spectral performance. It has been immensely helpful in accurately characterizing our 2 nm bandwidth ultrafast laser. Based on this, we plan to utilize your system as a reference tool to monitor the long-term pulse shape stability of our laser.

I currently have three different FROGs and the Femto Easy Single Shot FROG is the easiest, most reliable FROG to use. Femto Easy has made a stable software release (not compiled LabVIEW homebrew code) that reliably connects to FROG hardware. Femto Easy FROG hardware is quick and easy to align with one adjustment point saving time during setup. The phase retrieval algorithm is reliable providing the same quality as a traditional scanning frog. The FROG trigger option works well with my low rep rate amplifier enabling versatility between my 1 kHz and 10 Hz Ti:sapphire amplifiers.

Femto Easy’s FROGs are the most versatile tools available on the market. For our research purposes, the ability to cover broad bandwidth ranges with both fs and ps duration pulses made them ideal. The Femto Easy team also provides fast support and training on the equipment, which experienced FROG users will understand is crucial. The software produces accurate retrievals even in complex or low signal environments.

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.