High power coherent beam combination from two fiber lasers
2006; Optica Publishing Group; Volume: 14; Issue: 7 Linguagem: Inglês
10.1364/oe.14.002721
ISSN1094-4087
AutoresBing He, Qihong Lou, Jun Zhou, Jingxing Dong, Yunrong Wei, Dong Xue, Yunfeng Qi, Zhoupin Su, Libo Li, Fangpei Zhang,
Tópico(s)Advanced Fiber Optic Sensors
ResumoPhase locking of two fiber lasers is demonstrated experimentally by the use of a self-imaging resonator with a spatial filter. The high-contrast interference strips of the coherent beam profile are observed. The coherent output power of the fiber array exceeds 12W and the efficiency of coherent power combination is 88% with pump power of 60W. The whole system operates quite stably and, for the spatial filter, no thermal effects have been observed, which means that we can increase the coherent output power further by this method.
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