altOFS (Norcross, GA) has announced new additions to its FemtoCompTM Modules line of dispersion control technologies for ultra-short pulse lasers. The modules address the difficult-to-match, third- and fourth-order dispersions of commonly used grating compressors. There are four new FemtoComp Modules in addition to the original 1μm wavelength version: two pulse-stretcher modules for either the 1 or 1.55μm wavelength range, a polarization-maintaining module in the 1μm wavelength range, and a module for the .8μm wavelength range.

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