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Generation of all-fiber femtosecond vortex laser based on NPR mode-locking and mechanical LPG 被引量:2
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作者 Zhiming Zhang Wei Wei +4 位作者 Liqin Tang Jie Yang Jiewei Guo Lei Ding Yigang Li 《Chinese Optics Letters》 SCIE EI CAS CSCD 2018年第11期5-8,共4页
An all-fiber femtosecond vortex laser based on common fiber components is constructed. It can produce femtosecond orbital angular momentum modes whose time pulse width is 398 fs. The topological charge of output orbit... An all-fiber femtosecond vortex laser based on common fiber components is constructed. It can produce femtosecond orbital angular momentum modes whose time pulse width is 398 fs. The topological charge of output orbital angular momentum (OAM) modes from this laser can be adjusted among 0, +1, and -1 easily while it is also easy to convert between continuous OAM modes and pulse OAM modes. 展开更多
关键词 Femtosecond lasers Laser modes Long period gratings Mode locking Optical angular momentum
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