Helically twisted photonic crystal fibres

PSJ Russell, R Beravat… - … Transactions of the …, 2017 - royalsocietypublishing.org
Recent theoretical and experimental work on helically twisted photonic crystal fibres (PCFs)
is reviewed. Helical Bloch theory is introduced, including a new formalism based on the tight …

Advances on mode-coupling theories, fabrication techniques, and applications of the helical long-period fiber gratings: a review

H Zhao, H Li - Photonics, 2021 - mdpi.com
In this paper, we have briefly review the develo** history and recent advances made with
regard to helical long-period fiber gratings (HLPGs) in three aspects, ie, the mode-coupling …

Using the nonseparability of vector beams to encode information for optical communication

G Milione, TA Nguyen, J Leach, DA Nolan, RR Alfano - Optics letters, 2015 - opg.optica.org
In this work, it is experimentally demonstrated that the nonseparability of vector beams (eg,
radial and azimuthal polarization) can be used to encode information for optical …

Temporal effect of the spin-to-orbit conversion in tightly focused femtosecond optical fields

S Zhang, Z Zhou, Y Fu, Q Chen, W Li, H Fang, C Min… - Optics …, 2023 - opg.optica.org
Spin and orbital angular momenta are two of the most fundamental physical quantities that
describe the complex dynamic behaviors of optical fields. A strong coupling between these …