Dual-polarization analog optical phase conjugation improves optical focusing through tissue

Scilight ◽  
2019 ◽  
Vol 2019 (24) ◽  
pp. 240005
Author(s):  
Amelia Jaycen
Keyword(s):  
Phase Conjugation ◽  
Optical Phase Conjugation ◽  
Dual Polarization ◽  
Optical Phase ◽  
Optical Focusing

scholarly journals Implementation of an Off-Axis Digital Optical Phase Conjugation System for Turbidity Suppression on Scattering Medium

2020 ◽  
Vol 10 (3) ◽  
pp. 875 ◽  
Author(s):  
Kai Zhang ◽  
Zhiyang Wang ◽  
Haihan Zhao ◽  
Chao Liu ◽  
Haoyun Zhang ◽  
...  
Keyword(s):  
Biological Tissue ◽  
Phase Conjugation ◽  
Turbid Media ◽  
Acquisition Time ◽  
Optical Phase Conjugation ◽  
Scattering Medium ◽  
Conjugation System ◽  
Optical Phase ◽  
Conjugate Reduction ◽  
Optical Focusing

Due to the light scattering effect, it is difficult to directly achieve optical focusing and imaging in turbid media, such as milk and biological tissue. The turbidity suppression of a scattering medium and control of light through the scattering medium are important for imaging on biological tissue or biophotonics. Optical phase conjugation is a novel technology on turbidity suppression by directly creating phase conjugation light waves to form time-reversed light. In this work, we report a digital optical phase conjugation system based on off-axis holography. Compared with traditional digital optical phase conjugation methods, the off-axis holography acquires the conjugation phase using only one interference image, obviously saving photo acquisition time. Furthermore, we tested the optical phase conjugate reduction performance of this system and also achieved optical focusing through the diffuser. We also proved that the reversing of random scattering in turbid media is achievable by phase conjugation.

scholarly journals Optical Phase Conjugation Using Nonlinear SOA for Nonlinearity and Dispersion Compensation of Coherent Multi-Carrier Lightwave Systems

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 44059-44068
Author(s):  
Lakshmi Narayanan Venkatasubramani ◽  
Aneesh Sobhanan ◽  
Anirudh Vijay ◽  
R. David Koilpillai ◽  
Deepa Venkitesh
Keyword(s):  
Phase Conjugation ◽  
Dispersion Compensation ◽  
Optical Phase Conjugation ◽  
Optical Phase

scholarly journals Enhancing the Signal Power Symmetry for Optical Phase Conjugation Using Erbium-Doped-Fibre-Assisted Raman Amplification

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 222766-222773
Author(s):  
Mingming Tan ◽  
Tu Thanh Nguyen ◽  
Pawel Rosa ◽  
Mohammad Ahmad Zaki Al-Khateeb ◽  
Tingting Zhang ◽  
...  
Keyword(s):  
Phase Conjugation ◽  
Signal Power ◽  
Optical Phase Conjugation ◽  
Raman Amplification ◽  
Optical Phase ◽  
Erbium Doped
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