Open AccessOn-chip generation of the reconfigurable orbital angular momentum with high order
Author(s) -
Aiping Liu,
Mengze Wu,
Rui Zhuang,
Jingjing Hong,
Qin Wang,
Xi-Feng Ren
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.393320
Subject(s) - angular momentum , optics , holography , optical vortex , physics , light beam , orbital angular momentum of light , computer generated holography , beam (structure) , vortex , total angular momentum quantum number , quantum mechanics , thermodynamics
In this manuscript, the generation of an optical vortex beam with high order and reconfigurable orbital angular momentum (OAM) is studied. Multi-waveguide holographic gratings (MWHG) are deployed to generate OAM beams with high order. The generation of the OAM beam with an order l from +4 to +8 is demonstrated by numerical simulations, and the generated OAM order is manipulable and configurable by incident phase. The working bandwidths of the MWHG for different OAM orders are at the level of 40 nm. This work could provide valuable references for practical implementation of OAM in integrated optics.