The SlimLiner is new high spectral purity laser source that offers unparalleled performance. This single-frequency, ultra-narrow linewidth laser (< dHz) is based on a Self-Adaptive Photonic Oscillator (SAPO) technology developed by the Institut Foton at Université de Rennes in France.  A pump laser is locked onto a cavity using stimulated Brillouin scattering that offers an extremely narrow gain bandwidth, naturally favoring a high spectral purity.