High-fidelity phase conjugation generated by holograms: application to imaging through multimode fibers

1991 ◽  
Author(s):  
Anpei Pan ◽  
Michel E. Marhic ◽  
Max Epstein
Keyword(s):  
Phase Conjugation ◽  
High Fidelity ◽  
Multimode Fibers

Fidelity of image restoration by partial phase conjugation through multimode fibers

1995 ◽  
Vol 114 (1-2) ◽  
pp. 50-56 ◽  
Author(s):  
Scott Campbell ◽  
Pochi Yeh ◽  
Claire Gu ◽  
Q Byron He
Keyword(s):  
Image Restoration ◽  
Phase Conjugation ◽  
Partial Phase ◽  
Multimode Fibers

Image distortion in multimode fibers and restoration by polarization-preserving phase conjugation

1987 ◽  
Vol 12 (7) ◽  
pp. 510 ◽  
Author(s):  
Paul H. Beckwith ◽  
Ian McMichael ◽  
Pochi Yeh
Keyword(s):  
Phase Conjugation ◽  
Image Distortion ◽  
Multimode Fibers

Correction of polarization and modal scrambling in multimode fibers by phase conjugation

1987 ◽  
Vol 12 (7) ◽  
pp. 507 ◽  
Author(s):  
Ian McMichael ◽  
Pochi Yeh ◽  
Paul Beckwith
Keyword(s):  
Phase Conjugation ◽  
Multimode Fibers

scholarly journals High-fidelity spatial mode transmission through a 1-km-long multimode fiber via vectorial time reversal

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yiyu Zhou ◽  
Boris Braverman ◽  
Alexander Fyffe ◽  
Runzhou Zhang ◽  
Jiapeng Zhao ◽  
...  
Keyword(s):  
Time Reversal ◽  
Quantum Communication ◽  
Communication Protocol ◽  
Signal Beam ◽  
High Fidelity ◽  
Spatial Mode ◽  
Multimode Fibers ◽  
Spatial Modes ◽  
Potential Applications ◽  
Quantum Communication Protocol

AbstractThe large number of spatial modes supported by standard multimode fibers is a promising platform for boosting the channel capacity of quantum and classical communications by orders of magnitude. However, the practical use of long multimode fibers is severely hampered by modal crosstalk and polarization mixing. To overcome these challenges, we develop and experimentally demonstrate a vectorial time reversal technique, which is accomplished by digitally pre-shaping the wavefront and polarization of the forward-propagating signal beam to be the phase conjugate of an auxiliary, backward-propagating probe beam. Here, we report an average modal fidelity above 80% for 210 Laguerre-Gauss and Hermite-Gauss modes by using vectorial time reversal over an unstabilized 1-km-long fiber. We also propose a practical and scalable spatial-mode-multiplexed quantum communication protocol over long multimode fibers to illustrate potential applications that can be enabled by our technique.

scholarly journals High-fidelity off-axis digital optical phase conjugation with transmission matrix assisted calibration

2020 ◽  
Vol 28 (23) ◽  
pp. 34692
Author(s):  
Chaitanya K. Mididoddi ◽  
Rachel A. Lennon ◽  
Shuhui Li ◽  
David B. Phillips
Keyword(s):  
Phase Conjugation ◽  
High Fidelity ◽  
Transmission Matrix ◽  
Optical Phase Conjugation ◽  
Optical Phase
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