Chinese Optics Letters, 2021, 19 (1): 010603, Published Online: Dec. 28, 2020
Generation of nanosecond cylindrical vector beams in two-mode fiber and its applications of stimulated Raman scattering 
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Abstract
We present the generation of the nanosecond cylindrical vector beams (CVBs) in a two-mode fiber (TMF) and its applications of stimulated Raman scattering. The nanosecond (1064 nm, 10 ns, 10 Hz) CVBs have been directly produced with mode conversion efficiency of ～18 dB (98.4%) via an acoustically induced fiber grating, and then the stimulated Raman scattering signal is generated based on the transmission of the nanosecond CVBs in a 100-m-long TMF. The transverse mode intensity and polarization distributions of the first-order Stokes shift component (1116.8 nm) are consistent with the nanosecond CVBs pump pulse.
Wending Zhang, Lu Zhang, Chao Meng, Feng Gao. Generation of nanosecond cylindrical vector beams in two-mode fiber and its applications of stimulated Raman scattering[J]. Chinese Optics Letters, 2021, 19(1): 010603.
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