Mutual injection phase-locking of two double clad fiber lasers

作者：Liu Yang^*; Cheng Yong; Xu Li Xin; Zheng Rui; Wang Xiao Bing; Wang Hui Sheng; Lu Chang Yong; Sun Bin

来源：Acta Physica Sinica, 2009, 58(6): 3929-3933.

• fiber laser
• coherent combining
• mutual-injection phase-locking

A novel mutual injection phase-locking fiber laser combining technique is proposed, based on a corner-cube and a beam splitter with reflectivity of 50% at 45 degrees, and the mutual injection phase-locking principle is introduced. Mutual injection phase-locking of two individual double clad fiber lasers is experimentally realized, steady interference stripes with high contrast ratio (about 0.57) are observed and more than 10 W output power is obtained, which indicates that the power combining efficiency is 76%. Successful attempts of phase lock show that this mutual injection-locking method is a promising technology in the field of fiber laser coherent and the output power can be further scaled.

• 出版日期2009-6
• 单位中国科学技术大学; 中国人民解放军武汉军械士官学校