Vortex random fiber laser with controllable orbital angular momentum mode

Xiaoya Ma; Jun Ye; Yang Zhang; Jiangming Xu; Jian Wu; Tianfu Yao; Jinyong Leng; Pu Zhou

doi:doi:10.1364/PRJ.413455

Photonics Research, 2021, 9 (2): 02000266, Published Online: Feb. 2, 2021

Vortex random fiber laser with controllable orbital angular momentum mode Download： 638次

Xiaoya Ma ¹Jun Ye ¹Yang Zhang ¹Jiangming Xu ^1,2Jian Wu ¹Tianfu Yao ¹Jinyong Leng ¹Pu Zhou ^1,*

Author Affiliations

¹ College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

² e-mail: jmxu1988@163.com

Figures & Tables

Fig. 1. Experimental setup of the vortex RFL system. (a) Generation setup of the vortex RFL. (b) Interference setup of the vortex RFL. WDM, wavelength division multiplexer; FBG, fiber Bragg grating with central wavelength at 1092.1 nm; PBS, polarization beam splitter; BS, beam splitter; SLM, spatial light modulator; CCD, charge-coupled device.

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Fig. 2. (a) Normalized amplitude spectra of a 1092.1 nm random laser at different pump powers. (b) Output power evolution of RFL at different pump powers.

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Fig. 3. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is 1 to 5 from left to right.

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Fig. 4. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is −5 to −1 from left to right.

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Fig. 5. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is 10, 20, and 50 from left to right.

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Fig. 6. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of vortex RFL acquired by a CCD. The topological charge l is 1.5 and 2.5 from left to right.

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Xiaoya Ma, Jun Ye, Yang Zhang, Jiangming Xu, Jian Wu, Tianfu Yao, Jinyong Leng, Pu Zhou. Vortex random fiber laser with controllable orbital angular momentum mode[J]. Photonics Research, 2021, 9(2): 02000266.

Vortex random fiber laser with controllable orbital angular momentum mode Download： 638次

Fig. 2. (a) Normalized amplitude spectra of a 1092.1 nm random laser at different pump powers. (b) Output power evolution of RFL at different pump powers.

Fig. 3. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is 1 to 5 from left to right.

Fig. 4. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is −5 to −1 from left to right.

Fig. 5. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is 10, 20, and 50 from left to right.

Fig. 6. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of vortex RFL acquired by a CCD. The topological charge l is 1.5 and 2.5 from left to right.

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Vortex random fiber laser with controllable orbital angular momentum mode Download： 638次

Fig. 2. (a) Normalized amplitude spectra of a 1092.1 nm random laser at different pump powers. (b) Output power evolution of RFL at different pump powers.

Fig. 3. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is 1 to 5 from left to right.

Fig. 4. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is −5 to −1 from left to right.

Fig. 5. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of the vortex RFL acquired by a CCD. The topological charge l is 10, 20, and 50 from left to right.

Fig. 6. (a) Holograms loaded onto the SLM. (b) Intensity distribution. (c) Interference fringes of vortex RFL acquired by a CCD. The topological charge l is 1.5 and 2.5 from left to right.

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