The 509 nm single-frequency continuous-wave (CW) laser represents a breakthrough in high-power, ultra-low noise laser technology. Utilizing an advanced injection-locked DFB seed laser combined with an external cavity Pound-Drever-Hall (PDH) resonant frequency doubling system, this laser breaks the record with an unprecedented 101.3 W output power and an ultra-narrow linewidth of 21 kHz. 

It serves as the ideal, high-performance pump and excitation source for cutting-edge quantum and precision engineering applications. 

509 nm laser output power and conversion efficiency versus injected fundamental laser power (Insets: laser beam profile and laser operating status at maximum power).

(c) Frequency noise and integrated linewidth of the 509 nm laser at maximum output power

 (d)RIN for 509 nm laser at the maximum output power