Multi-order orbital angular momentum mode generators based on integrated long-period fiber gratings

被引：1

作者：

Ma, Yuehui ^{[1
,2
]}

Jiang, Chen ^{[3
,4
]}

Chen, Siyu ^{[1
]}

Mou, Chengbo ^{[1
]}

Zhou, Kaiming ^{[2
]}

Liu, Yunqi ^{[1
]}

机构：

[1] Shanghai Univ, Shanghai Inst Adv Commun & Data Sci, Joint Int Res Lab Specialty Fiber Opt & Adv Commu, Key Lab Specialty Fiber Opt & Optic Access Networ, Shanghai 200444, Peoples R China

[2] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England

[3] Nanjing Univ Posts & Telecommun, Adv Photon Technol Lab, Coll Elect & Opt Engn, 9 Wenyuan Rd, Nanjing 210023, Peoples R China

[4] Nanjing Univ Posts & Telecommun, Coll Flexible Elect Future Technol, 9 Wenyuan Rd, Nanjing 210023, Peoples R China

来源：

OPTICS LETTERS | 2024年 / 49卷 / 11期

基金：

中国国家自然科学基金;

关键词：

OPTICAL-FIBERS; LIGHT;

D O I：

10.1364/OL.520507

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose integrated long-period fiber gratings (LPFGs) fabricated by a CO2 laser to realize a multi-channel and multi-order orbital angular momentum (OAM) mode generator. The integrated LPFG is inscribed on multiple surfaces of the few-mode fiber (FMF) by rotating the fiber in the opposite direction at an angle theta. By controlling the rotation angle, the number of integrated LPFGs can be set. The selected rotation angle is 43 degrees, which can integrate up to nine LPFGs, i.e., realizing that the number of channels for first-order orbital angular momentum (OAM) mode conversion is nine. The integrated LPFGs fabricated in this method allow a flexible design of channel spacing. In addition, the flexible selection of the integrated grating period achieves the simultaneous generation of multi-channel second-order and third-order OAM mode conversion. The multi-channel and multi-order OAM mode generators have important application in optical communication multiplexing systems and OAM sensing. (c) 2024 Optica Publishing Group

引用

下载

页码：3243 / 3246

页数：4

共 50 条

[21] Theory of Fourier mode coupling for long-period fiber gratings
Zeng Xiang-Kai
Rao Yun-Jiang
ACTA PHYSICA SINICA, 2010, 59 (12) : 8607 - 8614
[22] Generation of all-fiber third-order orbital angular momentum modes based on femtosecond laser processing of long-period grating br
Wu, Hang
Chen, Liao
Shu, Xue-Wen
Zhang, Xin-Liang
ACTA PHYSICA SINICA, 2023, 72 (04)
[23] High Sensitivity Refractometer Based on Long-Period Fiber Gratings with High Diffraction Order Mode at Turning Point
Liu, Zuyao
Liu, Yunqi
Mou, Chengbo
Zou, Fang
Wang, Tingyun
2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR), 2017,
[24] Characterization of single-mode fiber with fiber Bragg gratings for the design of long-period gratings
Liu, Qing
Chiang, Kin Seng
Liu, Yunqi
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2007, 25 (08) : 2129 - 2134
[25] Multi-mode coupling in long-period fibre gratings
Liu, ZX
Yang, CX
CHINESE PHYSICS LETTERS, 2004, 21 (08) : 1549 - 1552
[26] Long-period fiber gratings based on periodic microbends
Hwang, IK
Yun, SH
Kim, BY
OPTICS LETTERS, 1999, 24 (18) : 1263 - 1265
[27] All-fiber mode converter based on long-period fiber gratings written in few-mode fiber
Zhao, Yunhe
Liu, Yunqi
Zhang, Chenyi
Zhang, Liang
Zheng, Guangjun
Mou, Chengbo
Wen, Jianxiang
Wang, Tingyun
OPTICS LETTERS, 2017, 42 (22) : 4708 - 4711
[28] Ultra-broadband multi-channel orbital angular momentum mode generator using a helical long-period grating pair
Ma, Yuehui
Jiang, Chen
Mou, Chengbo
Liu, Yunqi
OPTICS AND LASER TECHNOLOGY, 2024, 175
[29] Coherent transfer of optical orbital angular momentum in multi-order Raman sideband generation
Strohaber, J.
Zhi, M.
Sokolov, A. V.
Kolomenskii, A. A.
Paulus, G. G.
Schuessler, H. A.
OPTICS LETTERS, 2012, 37 (16) : 3411 - 3413
[30] Broadband Wavelength-Tunable Mode Converter Based on Long-Period Fiber Gratings
Wei, Peng
Ma, Yuehui
Zhu, Yu
Jiang, Chen
Liu, Yunqi
IEEE PHOTONICS TECHNOLOGY LETTERS, 2024, 36 (10) : 649 - 652

← 1 2 3 4 5 →