Open AccessExperimental study of detecting orbital angular momentumstates of spiral phase beams
Author(s) -
Xiaoqing Qi,
Chunqing Gao
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.014208
Subject(s) - angular momentum , physics , optics , interferometry , coaxial , light beam , spiral (railway) , orbital angular momentum of light , orbital angular momentum multiplexing , phase (matter) , beam (structure) , total angular momentum quantum number , telecommunications , classical mechanics , mathematical analysis , mathematics , quantum mechanics , computer science
An experimental setup was built to detect orbital angular momentum (OAM) states of light beams. The helical beams with different OAM states were generated by using a spatial light modulator. A Mach-Zehnder (M-Z) interferometer was used to detect helical beams with odd or even OAM number. Sorting of coaxial helical beams was also experimentally realized.