Abstract
Generation and use of orbital angular momentum (OAM) of light is finding more and more interest in a wide variety of fields of photonics: communications, optical trapping, quantum optics, and many more [1]. In the investigation of such behavior, twisting of photonic crystal fibers shows interesting physical phenomena [2]. We previously reported the ability to create helical hollow fibers by mechanically twisting a tube lattice fiber made of polyurethane, the twist of which can be adjusted and reversed [3]. In this work we report how such deformation induces a mode transformation to an OAM mode, allowing a simple and tunable way to generate OAM modes. We take advantage of THz time domain spectroscopy to obtain information on both intensity and field components, and to be able to investigate how they change both in time and with frequency.
© 2017 IEEE
PDF ArticleMore Like This
Alessio Stefani, Richard Lwin, Alexander Argyros, and Simon Fleming
AW4C.4 Australian Conference on Optical Fibre Technology (ACOFT) 2016
Haixia Feng, Hu Zhang, Jiaqi Wang, Songke Fang, Xiaoguang Zhang, and Lixia Xi
JTh2A.106 CLEO: Applications and Technology (CLEO:A&T) 2023
G. K. L. Wong, X. M. Xi, M. S. Kang, H. W. Lee, and P. St. J. Russell
FTh3C.3 Frontiers in Optics (FiO) 2012