Long term evaluation of industrial grade hollow-core fiber beam delivery system for short pulse lasers with average power of up to 150W

We present a robust and industrial-grade evaluation of the GLOphotonics BDS-HP-STB long term, an 8-meters long hollow core fiber laser beam delivery system, over continuous long-term periods (14 to 150 hours). Designed to meet the most stringent industrial requirements, it was sequentially tested with the three NIR lasers ranging in power from 40 W to 150 W and pulse duration from 300 fs to continuous-wave. The system demonstrated exceptional performance in power handling and operation condition, with ~0.1% RMS relative output power stability, M2 of less than 1.2, and more than 90% transmission efficiency across all tests. These results affirm that the BDS-HP-STB is not only industry-ready but also also a critical component poised to accelerate the advancement in laser micro-machining, addressing the current innovation gap in thus high-demand field