High-order orbital angular momentum mode generator based on twisted photonic crystal fiber

被引：90
作者：
Fu, Cailing [1 ]
Liu, Shen [1 ]
Wang, Ying [1 ]
Bai, Zhiyong [1 ]
He, Jun [1 ]
Liao, Changrui [1 ]
Zhang, Yan [1 ]
Zhang, Feng [1 ]
Yu, Bin [1 ]
Gao, Shecheng [2 ]
Li, Zhaohui [3 ,4 ]
Wang, Yiping [1 ]
机构：
[1] Shenzhen Univ, Coll Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China
[2] Jinan Univ, China Dept Elect Engn, Guangzhou 510632, Guangdong, Peoples R China
[3] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
[4] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
OPTICS LETTERS | 2018年 / 43卷 / 08期
基金：
中国国家自然科学基金;
关键词：
OPTICAL VORTEX GENERATION; LONG-PERIOD FIBER; CONVERTER; GRATINGS; MANIPULATION; CONVERSION; WRITTEN;
D O I：
10.1364/OL.43.001786
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
High-order orbital angular momentum (OAM) modes, namely, OAM(+5) and OAM(+6), were generated and demonstrated experimentally by twisting a solid-core hexagonal photonic crystal fiber (PCF) during hydrogen-oxygen flame heating. Leaky orbital resonances in the cladding depend strongly on the twist rate and length of the helical PCF. Moreover, the generated high-order OAM mode could be a polarized mode. The secret of the successful observation of high-order modes is that leaky orbital resonances in the twisted PCF cladding have a high coupling efficiency of more than -20 dB. (C) 2018 Optical Society of America
引用
收藏
页码：1786 / 1789
页数：4
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