Experimental demonstration shows 1970 W output power and 3.2 GHz linewidth in a high-performance fiber laser, indicating advancements in laser technology.
Key Points
A maximum output power of 1970 W was achieved with a narrow linewidth of 3.2 GHz, highlighting its performance.
The fiber laser effectively increased the SBS threshold from 973 W to 1970 W using a cascaded phase modulation strategy.
High-order mode suppression was aided by the significant bending loss of a low numerical aperture fiber.
Results represent the highest reported output power for narrow-linewidth fiber lasers below 1040 nm.