A difference frequency comb with spectral purity and absolute accuracy. This is DFC PURACY. One click is all it takes to get low phase noise, ultra-narrow sub-kHz linewidths, and rock-solid long-term stability. No juggling, no compromises. Just clean, absolute frequencies traceable to the SI second and a system that quietly takes care of itself in the background. 
Thanks to the automated simultaneous lock to optical and RF references, daily calibration becomes a thing of the past. You save time, gain confidence, and stay focused on what really matters. Whether you are upgrading from DFC CORE + or building something new, PURACY fits right in and elevates your setup with ease.
From precision spectroscopy to robust infrastructural comb systems and photonic microwave and THz generation, DFC PURACY opens the door to applications where stability and purity truly make the difference.