Generation of all-fiber femtosecond vortex laser based on NPR mode-locking and mechanical LPG

Zhiming Zhang; Wei Wei; Liqin Tang; Jie Yang; Jiewei Guo; Lei Ding; Yigang Li

doi:10.3788/COL201816.110501

Journals >Chinese Optics Letters >Volume 16 >Issue 11 >Page 110501 > Article

Chinese Optics Letters
Vol. 16, Issue 11, 110501 (2018)

Generation of all-fiber femtosecond vortex laser based on NPR mode-locking and mechanical LPG

Zhiming Zhang, Wei Wei, Liqin Tang, Jie Yang, Jiewei Guo, Lei Ding, and Yigang Li^*

Author Affiliations

School of Physics, Nankai University, Tianjin 300071, China

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DOI: 10.3788/COL201816.110501 Cite this Article Set citation alerts

Zhiming Zhang, Wei Wei, Liqin Tang, Jie Yang, Jiewei Guo, Lei Ding, Yigang Li. Generation of all-fiber femtosecond vortex laser based on NPR mode-locking and mechanical LPG[J]. Chinese Optics Letters, 2018, 16(11): 110501 Copy Citation Text

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Abstract

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.