Photonics Research, Volume. 8, Issue 8, 1268(2020)
All-fiber generation of arbitrary cylindrical vector beams on the first-order Poincaré sphere
Fig. 1. (a) Polarization PS for representing the plane wave states of polarization. (b) The
Fig. 2. (a) Eigenmodes in the FMF without stress. (b) Eigenmodes in the FMF with stress.
Fig. 3. (a) Schematic diagram to generate CV beams. (b) The polarizations and (c) modes along a longitude and a latitude on the two PSs. (b) and (c) show the mapping relationship between two PSs when the angle between
Fig. 4. (a) Experimental setup to generate CV beams. Single-mode PC, single-mode polarization controller; PL, photonic lantern; Few-mode PC, few-mode polarization controller; Obj., objective; BS, beam splitter; QWP, quarter-wave plate; Pol., polarizer. (b) The microscope image of the few-mode-end cross section of the fabricated MSPL. (c) Near-field mode images at the few-mode end of the MSPL and output of 2 m FMF-tailed from the MSPL. (d) Phase differences between the four egienmodes varying the bending radius.
Fig. 5. (a) Experimental results and (b) simulation results when the input polarization is adjusted along the red line on the polarization PS, e.g.,
Fig. 6. Correlation coefficients for the modes of
Fig. 7. Polarization distributions of the modes along the longitude and latitude on the FOPS.
Fig. 8. Detailed comparison between our approach and others’. The yellow rows represent the free-space system, and the green rows represent the all-fiber system.
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Lipeng Feng, Yan Li, Sihan Wu, Xun Guan, Chen Yang, Weijun Tong, Wei Li, Jifang Qiu, Xiaobin Hong, Yong Zuo, Hongxiang Guo, Erhu Chen, Jian Wu, "All-fiber generation of arbitrary cylindrical vector beams on the first-order Poincaré sphere," Photonics Res. 8, 1268 (2020)
Category: Physical Optics
Received: Dec. 4, 2019
Accepted: May. 3, 2020
Published Online: Jul. 14, 2020
The Author Email: Yan Li (liyan1980@bupt.edu.cn)