Overview of NLIR Wavelength Converters
NLIR offers versatile and user-friendly wavelength converters, specifically the SPEKTRUM and TUNE models, which utilize the nonlinear optical principle of sum-frequency generation. These converters are designed with a fiber-coupled interface, making them accessible for users without expertise in nonlinear optics or lasers.

Specifications
The SPEKTRUM Wavelength Converter transforms infrared light in the 1.9 - 5.3 μm range to near-infrared/visible light in the 682 - 886 nm range. Users can choose between narrow or broad wavelength ranges depending on their needs for efficiency or versatility. The converters feature a proprietary low-noise mixing module for stable and efficient operation.

Applications
An example application of the SPEKTRUM Wavelength Converter is in the characterization of mid-IR supercontinuum sources, focusing on both spectrum and temporal pulse shape. This is achieved by pairing the converter with a NIR detector and a VIS light grating spectrometer. For direct pulse-to-pulse monitoring, a BUNDLE Spectrometer with a SPEKTRUM Wavelength Converter can be used.

Data Interpretation
The document includes graphical data showing the temporal shape of a mid-IR supercontinuum ns-pulse and the spectral shape of the mid-IR supercontinuum measured in a single frame. These graphs illustrate the performance and capabilities of the wavelength converters in practical applications.