Spectral beam combining of fiber lasers with 32 channels

• DOI: 10.1016/j.yofte.2023.103311
• Publication Date: 2023-04-11T17:05:30Z
• Authors: Qi Gao; Zhe Li; Wei Zhao; Gang Li; Pei Ju; Wei Gao; Wenjia Dang
• Keywords: Laser linewidth; M squared

We present a method for the spectral combination of fiber lasers with high density, increasing density utilization no degradation in beam quality, and decreasing single channel narrow linewidth output power. Experiments demonstrating utility our are described. The results show that we achieved 32-channel laser combining (SBC) quality M2 = 1.68. SBC can be constantly optimized by integrally varying interval feedback system. Our offers point reference to broadening additional channels enhancing power an excellent quality.