CYFL-KILO stands for Ytterbium fibre laser with kilohertz linewidth. This series deliver up to 20W output with narrow lindewidth, low phase noise and low relative intensity noise (RIN).
CYFL-KILO lasers are based on an MOFPA design. They integrate an ultra-low noise and narrow linewdith seed laser (<70kHz), which is amplified through several highly stable Yb-doped fibre amplifier stages. Also, these lasers can be thermally tuned in wavelength over 200MHz, and their central emission line can be modulated for locking purposes.