Chinese Optics Letters, 2015, 13 (6): 061406, Published Online: Sep. 14, 2018
All-fiber 7 × 1 signal combiner with high beam quality for high-power fiber lasers
140.3510 Lasers, fiber 140.3298 Laser beam combining 060.2310 Fiber optics 060.2340 Fiber optics components 230.2285 Fiber devices and optical amplifiers
Abstract
All-fiber signal combiner is a key component for augmenting the fiber laser power. Presently the reported 7 × 1 signal combiners are all have output fibers with core diameters larger than 100 μm. In order to improve the beam quality of the combiner, a fiber with smaller core of 50 μm diameter is chose to be the output fiber. An all-fiber 7 × 1 signal combiner is fabricated with measured power transmission efficiency around 99% for each port. The beam quality is improved and the measured M 2 are around 6 which are matched well with the theoretically calculated results.
Hang Zhou, Zilun Chen, Xuanfeng Zhou, Jing Hou, Jinbao Chen. All-fiber 7 × 1 signal combiner with high beam quality for high-power fiber lasers[J]. Chinese Optics Letters, 2015, 13(6): 061406.