Multi-vortex laser enabling spatial and temporal encoding

Zhen Qiao; Zhenyu Wan; Guoqiang Xie; Jian Wang; Liejia Qian; Dianyuan Fan

doi:10.1186/s43074-020-00013-x

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Zhen Qiao, Zhenyu Wan, Guoqiang Xie, Jian Wang, Liejia Qian, Dianyuan Fan. Multi-vortex laser enabling spatial and temporal encoding[J]. PhotoniX. doi: 10.1186/s43074-020-00013-x

Citation:

Zhen Qiao, Zhenyu Wan, Guoqiang Xie, Jian Wang, Liejia Qian, Dianyuan Fan. Multi-vortex laser enabling spatial and temporal encoding[J]. PhotoniX. doi: 10.1186/s43074-020-00013-x

Zhen Qiao, Zhenyu Wan, Guoqiang Xie, Jian Wang, Liejia Qian, Dianyuan Fan. Multi-vortex laser enabling spatial and temporal encoding[J]. PhotoniX. doi: 10.1186/s43074-020-00013-x

Citation:

Zhen Qiao, Zhenyu Wan, Guoqiang Xie, Jian Wang, Liejia Qian, Dianyuan Fan. Multi-vortex laser enabling spatial and temporal encoding[J]. PhotoniX. doi: 10.1186/s43074-020-00013-x

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Multi-vortex laser enabling spatial and temporal encoding

doi: 10.1186/s43074-020-00013-x

1.
School of Physics and Astronomy, Key Laboratory for Laser Plasmas (Ministry of Education), Collaborative Innovation center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai, 200240, China
2.
Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China
3.
SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China

Funds:

The work is supported by the National Natural Science Foundation of China Grant No. 61675130, 11774116, 11721091, 61490713, 91850203, 61761130082, 11574001, the National Key R&D Program of China (2018YFB2200204, 2018YFB1801803), the Royal Society-Newton Advanced Fellowship, the Natural Science Foundation of Hubei Province of China (2018CFA048), the Key R&D Program of Guangdong Province (2018B030325002), the Program for HUST Academic Frontier Youth Team (2016QYTD05), and the Fundamental Research Funds for the Central Universities (2019kfyRCPY037).

Received Date: 2019-12-18
Accepted Date: 2020-02-06

Available Online: 2020-05-15

Abstract

Abstract

Optical vortex is a promising candidate for capacity scaling in next-generation optical communications. The generation of multi-vortex beams is of great importance for vortex-based optical communications. Traditional approaches for generating multi-vortex beams are passive, unscalable and cumbersome. Here, we propose and demonstrate a multi-vortex laser, an active approach for creating multi-vortex beams directly at the source. By printing a specially-designed concentric-rings pattern on the cavity mirror, multi-vortex beams are generated directly from the laser. Spatially, the generated multi-vortex beams are decomposable and coaxial. Temporally, the multi-vortex beams can be simultaneously self-mode-locked, and each vortex component carries pulses with GHz-level repetition rate. Utilizing these distinct spatial-temporal characteristics, we demonstrate that the multi-vortex laser can be spatially and temporally encoded for data transmission, showing the potential of the developed multi-vortex laser in optical communications. The demonstrations may open up new perspectives for diverse applications enabled by the multi-vortex laser.
- Multi-vortex laser,
- Spatial encoding,
- Temporal encoding

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References(52)

References

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