scholarly journals Pattern manipulation via on-chip phase modulation between orbital angular momentum beams

2015 ◽  
Vol 107 (5) ◽  
pp. 051102 ◽  
Author(s):  
Huanlu Li ◽  
Michael J. Strain ◽  
Laura Meriggi ◽  
Lifeng Chen ◽  
Jiangbo Zhu ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Phase Modulation ◽  
On Chip

On-chip discrimination of orbital angular momentum of light with plasmonic nanoslits

Nanoscale ◽  
2016 ◽  
Vol 8 (4) ◽  
pp. 2227-2233 ◽  
Author(s):  
Shengtao Mei ◽  
Kun Huang ◽  
Hong Liu ◽  
Fei Qin ◽  
Muhammad Q. Mehmood ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Optical Communication ◽  
Communication System ◽  
Degree Of Freedom ◽  
System Capacity ◽  
Optical Communication System ◽  
On Chip

The orbital angular momentum (OAM) of light can be taken as an independent and orthogonal degree of freedom for multiplexing in an optical communication system, potentially improving the system capacity to hundreds of Tbits per second.

MEMS-based wavelength and orbital angular momentum demultiplexer for on-chip applications

2017 ◽  
Author(s):  
Vladimir S. Lyubopytov ◽  
Alexey P. Porfirev ◽  
Stanislav O. Gurbatov ◽  
Sujoy Paul ◽  
Mar-tin F. Schumann ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
On Chip

scholarly journals Integrated Photonic Orbital Angular Momentum Multiplexing and Demultiplexing on Chip

2014 ◽  
Author(s):  
Ryan P. Scott ◽  
Roberto Proietti ◽  
Binbin Guan ◽  
S. J. Yoo
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
On Chip

scholarly journals Ultrafast control of fractional orbital angular momentum of microlaser emissions

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Zhifeng Zhang ◽  
Haoqi Zhao ◽  
Danilo Gomes Pires ◽  
Xingdu Qiao ◽  
Zihe Gao ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Optical Communication ◽  
High Speed ◽  
Quantum Information Processing ◽  
Time Window ◽  
Gain Medium ◽  
Control Pulse ◽  
Processing Technologies ◽  
On Chip

Abstract On-chip integrated laser sources of structured light carrying fractional orbital angular momentum (FOAM) are highly desirable for the forefront development of optical communication and quantum information–processing technologies. While integrated vortex beam generators have been previously demonstrated in different optical settings, ultrafast control and sweep of FOAM light with low-power control, suitable for high-speed optical communication and computing, remains challenging. Here we demonstrate fast control of the FOAM from a vortex semiconductor microlaser based on fast transient mixing of integer laser vorticities induced by a control pulse. A continuous FOAM sweep between charge 0 and charge +2 is demonstrated in a 100 ps time window, with the ultimate speed limit being established by the carrier recombination time in the gain medium. Our results provide a new route to generating vortex microlasers carrying FOAM that are switchable at GHz frequencies by an ultrafast control pulse.

scholarly journals Controlling light’s helicity at the source: orbital angular momentum states from lasers

2017 ◽  
Vol 375 (2087) ◽  
pp. 20150436 ◽  
Author(s):  
Andrew Forbes
Keyword(s):  
Angular Momentum ◽  
Solid State ◽  
Orbital Angular Momentum ◽  
Laser Cavity ◽  
Solid State Lasers ◽  
On Demand ◽  
Twisted Light ◽  
Optical Modes ◽  
On Chip

Optical modes that carry orbital angular momentum (OAM) are routinely produced external to the laser cavity and have found a variety of applications, thus increasing the demand for integrated solutions for their production. Yet such modes are notoriously difficult to produce from lasers due to the strict symmetry requirements for their creation, together with the need to break the degeneracy in helicity. Here, we review the progress made since 1992 in producing such twisted light modes directly at the source, from gas to solid-state lasers, bulk to integrated on-chip solutions, through to generic devices for on-demand OAM in both scalar and vector forms. This article is part of the themed issue ‘Optical orbital angular momentum’.

scholarly journals Room-temperature on-chip orbital angular momentum single-photon sources

2022 ◽  
Vol 8 (2) ◽  
Author(s):  
Cuo Wu ◽  
Shailesh Kumar ◽  
Yinhui Kan ◽  
Danylo Komisar ◽  
Zhiming Wang ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Room Temperature ◽  
Single Photon ◽  
Single Photons ◽  
Photon Sources ◽  
On Chip

A room-temperature on-chip orbital angular momentum source that emits well-collimated single photons has been demonstrated.

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