Minimizing Measurement Error of Phase Noise of a Narrow-Band Laser Using a Fiber-Based Mach–Zehnder Interferometer with Polarization Maintenance

2018 ◽  
Vol 61 (5) ◽  
pp. 467-473
Author(s):  
A. B. Pnev ◽  
A. V. Borisova ◽  
Ya A. Denisova ◽  
K. V. Stepanov ◽  
A. A. Zhirnov ◽  
...  
2021 ◽  
Vol 60 (9) ◽  
pp. 2652
Author(s):  
Yunrui Bai ◽  
Haijuan Yu ◽  
Yong Zhang ◽  
Zhangwang Miao ◽  
Chaojian He ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Byoung S. Ham

AbstractRecently, new physics for unconditional security in a classical key distribution (USCKD) has been proposed and demonstrated in a frame of a double Mach–Zehnder interferometer (MZI) as a proof of principle, where the unconditional security is rooted in MZI channel superposition. Due to environmental phase noise caused by temperature variations, atmospheric turbulences, and mechanical vibrations, free-space optical links have been severely challenged for both classical and quantum communications. Here, the double MZI scheme of USCKD is analyzed for greatly subdued environment-caused phase noise via double unitary transformation, resulting in potential applications of free-space optical links, where the free-space optical link has been a major research area from fundamental physics of atomic clock and quantum key distribution to potential applications of geodesy, navigation, and MIMO technologies in mobile communications systems.


1997 ◽  
Vol 33 (16) ◽  
pp. 1404 ◽  
Author(s):  
P. Gunning ◽  
J.K. Lucek ◽  
D. Nesset ◽  
J.V. Collins ◽  
C.W. Ford ◽  
...  

2019 ◽  
Vol 442 ◽  
pp. 148-151
Author(s):  
Shuhe Wu ◽  
Wenfeng Huang ◽  
Peiyu Yang ◽  
Shuqi Liu ◽  
Liqing Chen

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