Improvement in orbital angular momentum mode sorting of optical vortices by using polarization gratings

2021 ◽  
Author(s):  
Keisaku Yamane ◽  
Kensuke Iitsuka ◽  
Moritsugu Sakamoto ◽  
Hiroshi Ono ◽  
Kazuhiko Oka ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Optical Vortices ◽  
Polarization Gratings ◽  
Momentum Mode

scholarly journals Hanbury Brown and Twiss interferometry with twisted light

2016 ◽  
Vol 2 (4) ◽  
pp. e1501143 ◽  
Author(s):  
Omar S. Magaña-Loaiza ◽  
Mohammad Mirhosseini ◽  
Robert M. Cross ◽  
Seyed Mohammad Hashemi Rafsanjani ◽  
Robert W. Boyd
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Phase Distribution ◽  
Angular Position ◽  
Optical Vortices ◽  
Optical Wave ◽  
Twisted Light ◽  
Momentum Mode ◽  
The Rich ◽  
Random Fluctuations

The rich physics exhibited by random optical wave fields permitted Hanbury Brown and Twiss to unveil fundamental aspects of light. Furthermore, it has been recognized that optical vortices are ubiquitous in random light and that the phase distribution around these optical singularities imprints a spectrum of orbital angular momentum onto a light field. We demonstrate that random fluctuations of intensity give rise to the formation of correlations in the orbital angular momentum components and angular positions of pseudothermal light. The presence of these correlations is manifested through distinct interference structures in the orbital angular momentum–mode distribution of random light. These novel forms of interference correspond to the azimuthal analog of the Hanbury Brown and Twiss effect. This family of effects can be of fundamental importance in applications where entanglement is not required and where correlations in angular position and orbital angular momentum suffice. We also suggest that the azimuthal Hanbury Brown and Twiss effect can be useful in the exploration of novel phenomena in other branches of physics and astrophysics.

Demonstration of QPSK data correlation and equalization using a tunable optical tapped delay line based on orbital angular momentum mode delays

2022 ◽  
Vol 503 ◽  
pp. 127438
Author(s):  
Ahmed Almaiman ◽  
Hao Song ◽  
Amir Minoofar ◽  
Haoqian Song ◽  
Runzhou Zhang ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Delay Line ◽  
Data Correlation ◽  
Momentum Mode

scholarly journals Orbital angular momentum mode-demultiplexing scheme with partial angular receiving aperture

2015 ◽  
Vol 23 (9) ◽  
pp. 12251 ◽  
Author(s):  
Shilie Zheng ◽  
Xiaonan Hui ◽  
Jiangbo Zhu ◽  
Hao Chi ◽  
Xiaofeng Jin ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Momentum Mode

Orbital Angular Momentum Mode Recognition based on Sparse Coding

2021 ◽  
Author(s):  
Kazuhiro Suzuki ◽  
Hiroki Kishikawa ◽  
Nobuo Goto ◽  
Junichi Fujikata
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Sparse Coding ◽  
Mode Recognition ◽  
Momentum Mode

Superimposed orbital angular momentum mode of multiple Hankel–Bessel beam propagation in anisotropic non-Kolmogorov turbulence

2016 ◽  
Vol 14 (8) ◽  
pp. 080102-80107 ◽  
Author(s):  
Guanghui Wu Guanghui Wu ◽  
Chuangming Tong Chuangming Tong ◽  
Mingjian Cheng Mingjian Cheng ◽  
and Peng Peng and Peng Peng
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Bessel Beam ◽  
Beam Propagation ◽  
Kolmogorov Turbulence ◽  
Momentum Mode

scholarly journals Photonic lantern broadband orbital angular momentum mode multiplexer

2018 ◽  
Vol 26 (23) ◽  
pp. 30042 ◽  
Author(s):  
Zeinab Sanjabi Eznaveh ◽  
Juan Carlos Alvarado Zacarias ◽  
Jose Enrique Antonio Lopez ◽  
Kai Shi ◽  
Giovanni Milione ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Momentum Mode
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