共 50 条
Tunable orbital angular momentum mode filter based on optical geometric transformation
被引:31
|作者:
Huang, Hao
[1
]
Ren, Yongxiong
[1
]
Xie, Guodong
[1
]
Yan, Yan
[1
]
Yue, Yang
[1
]
Ahmed, Nisar
[1
]
Lavery, Martin P. J.
[2
]
Padgett, Miles J.
[2
]
Dolinar, Sam
[3
]
Tur, Moshe
[4
]
Willner, Alan E.
[1
]
机构:
[1] Univ So Calif, Dept Elect Engn, Los Angeles, CA 90089 USA
[2] Univ Glasgow, SUPA, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
[3] Jet Prop Lab, Pasadena, CA 91109 USA
[4] Tel Aviv Univ, Sch Elect Engn, IL-69978 Tel Aviv, Israel
关键词:
LIGHT;
SCALE;
D O I:
10.1364/OL.39.001689
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
We present a tunable mode filter for spatially multiplexed laser beams carrying orbital angular momentum (OAM). The filter comprises an optical geometric transformation-based OAM mode sorter and a spatial light modulator (SLM). The programmable SLM can selectively control the passing/blocking of each input OAM beam. We experimentally demonstrate tunable filtering of one or multiple OAM modes from four multiplexed input OAM modes with vortex charge of l = -9, -4, +4, and +9. The measured output power suppression ratio of the propagated modes to the blocked modes exceeds 14.5 dB. (C) 2014 Optical Society of America
引用
收藏
页码:1689 / 1692
页数:4
相关论文