Research on FROG frequency-resolved optical switch assisted mid-infrared femtosecond laser

April 03, 2024

MesaPhotonics' FROG is favored by users with its high speed and high precision. The result is trusted by major research institutions. The founder Dan is the inventor of FROG algorithm. The result of MesaPhotonics' FROG product has been recognized in many papers. Gurun Optoelectronics is the agent of MesaPhotonics China and is responsible for the technical services of MesaPhotonics in China. Gurun Optoelectronics engineers provide customers with personalized services and provide different test solutions for each customer. In China, there are already more than a dozen installed capacity, and it has rich experience and technology in ultra-fast testing.

The mid-infrared ultrafast laser is a hotspot of current research. Due to its unique characteristics and broad application prospects, this band laser has been highly valued by researchers at home and abroad in recent years. First, the vibration and rotational energy spectra of most common gases and organic molecules are in the mid-infrared band, so mid-infrared lasers provide a unique tool for detecting and identifying these gases, in laser spectroscopy, greenhouse gas detection, and toxic. Gas monitoring and other aspects will have important application prospects; second, the three transparent windows of the space atmosphere are in the mid-infrared band, respectively 2~2.5 μm, 3~5 μm, 8~13 μm band, within these bands The loss of laser transmission through the space atmosphere is low, so it provides an ideal light source for laser radar and terrestrial-satellite space communication. Third, the moisture in human tissue is very strong for 2 μm and 3 μm lasers, so the lasers in these bands It can be used as a "scalpel" for medical surgery. Fourth, because some special-band mid-infrared lasers correspond to the radiation lines of missile tail flames, these bands of mid-infrared lasers are used in defense applications such as infrared photoelectric countermeasures. Very important. In addition, mid-infrared lasers have important application prospects in the fields of material micromachining, biopharmaceutical, coherent THz radiation and X-ray generation.

The erbium-doped (Tm) ultrafast lasers from Shenzhen University, Cambridge University and the Aalto University team in Finland produced highly efficient Raman solitons using MesaPhotonics' mid-infrared FROG test pulse width and phase. This mid-infrared technology is expected to be used in gas detection and ultrafast spectroscopy.

New support for the diagnosis of 2.0um ultrafast lasers!

The latest software interface enables the implementation of pulse shape references for Fourier transform limits in the time domain as well as reference for group delay and phase fitting. Provide customers with a more friendly test interface.