LD-PD PTE LTD offers high power, narrow-linewidth, frequency doubled Raman fiber laser from 560 to 760 nm for applications like laser cooling of atoms. It consists of an all-fiber Raman amplifier seeded with ultra-narrow linewidth external cavity diode laser or fiber DFB laser, and a single-pass frequency doubling unit with periodically poled nonlinear crystal. Compared with frequency-doubled diode laser, the fiber solution has stable configuration, excellent beam quality (M²<1.2), high output power (up to 10 W). It remains mode-hopping-free and stable under wide temperature variation and high mechanical vibration and can be applied in the quantum technology, biomedicals and industry.