The Second Harmonic Generation FROG (Frequency Resolved Optical Gating) is a cutting-edge solution for complete pulse characterization, seamlessly integrated with the pulseCheck autocorrelator series by APE. This advanced method is renowned for its ability to provide comprehensive spectral and temporal pulse analysis without the need for a spectrometer. By incorporating a specialized nonlinear crystal module and dedicated software, users can achieve a detailed understanding of laser pulse dynamics across a wide range of wavelengths.

One of the standout features of this system is its versatility in wavelength coverage, ranging from 420 nm to 2200 nm, thanks to the availability of different crystal modules. This ensures that users can explore pulse widths from as low as 20 femtoseconds (fs) to as high as 6 picoseconds (ps), with a high spectral resolution of up to 0.1 nm. The FROG option is particularly suited for laser systems with repetition rates exceeding 10 kHz, making it an ideal choice for high-frequency applications.

The included FROG Pulse Characterization Software is designed to enhance user experience by providing an intuitive interface for visualizing laser pulse intensity over time and frequency. The software generates a FROG trace diagram, which is a graphical representation of the pulse characteristics. With its phase matching routine, users can quickly and automatically determine the necessary phase matching tuning angle, streamlining the characterization process.

This comprehensive solution is available for the pulseCheck autocorrelator series, excluding the SM models, and is engineered to meet the needs of modern laser diagnostics. The ability to select from various crystal modules, such as VIS I, VIS II, NIR, and IR ranges, ensures that the system can be tailored to specific wavelength requirements, providing flexibility and precision for researchers and engineers alike.