Experimental demonstration of pulse-compression ghost imaging via coherent detection

Author(s):  
Long Pan ◽  
Chenjin Deng ◽  
Wenlin Gong ◽  
Shensheng Han
2016 ◽  
Vol 24 (23) ◽  
pp. 25983 ◽  
Author(s):  
Chenjin Deng ◽  
Wenlin Gong ◽  
Shensheng Han

2020 ◽  
Author(s):  
Yongxiang Chen ◽  
Yun Fu ◽  
Ji Xiong ◽  
Zinan Wang

Abstract In this paper, a novel birefringence measurement method through the Rayleigh backscattered lightwave within single-mode fiber is proposed, using a single chirped-pulse with arbitrary state of polarization. Numerical analysis is carried out in detail, then pulse-compression phase-sensitive optical time domain reflectometry (PC-Φ-OTDR) with polarization-diverse coherent detection is employed to verify this method. A 2km spun single-mode fiber is tested with 8.6 cm spatial resolution, and the average birefringence of the fiber under test is measured as 0.234rad/m, which is consistent with previous literatures about single-mode fiber. Moreover, the relationship between the measured birefringence and the spatial resolution is also studied for the first time, and the results show that spatial resolution is crucial for fiber birefringence measurement.


Author(s):  
Xiaodong Mei ◽  
Chenglong Wang ◽  
Long Pan ◽  
Pengwei Wang ◽  
Wenlin Gong ◽  
...  

2018 ◽  
Vol 8 (9) ◽  
pp. 1479 ◽  
Author(s):  
Xianlong Liu ◽  
Fei Wang ◽  
Minghui Zhang ◽  
Yangjian Cai

Ghost imaging with partially coherent light through two kinds of atmospheric turbulences: monostatic turbulence and bistatic turbulence, is studied, both theoretically and experimentally. Based on the optical coherence theory and the extended Huygens–Fresnel integral, the analytical imaging formulae in two kinds of turbulence have been derived with the help of a tensor method. The visibility and quality of the ghost image in two different atmospheric turbulences are discussed in detail. Our results reveal that in bistatic turbulence, the visibility and quality of the image decrease with the increase of the turbulence strength, while in monostatic turbulence, the image quality remains invariant when turbulence strength changes in a certain range, only the visibility decreases with the increase of the strength of turbulence. Furthermore, we carry out experimental demonstration of lensless ghost imaging through monostatic and bistatic turbulences in the laboratory, respectively. The experiment results agree well with the theoretical predictions. Our results solve the controversy about the influence of atmospheric turbulence on ghost imaging.


2019 ◽  
Vol 28 (9) ◽  
pp. 094201 ◽  
Author(s):  
Man-Qian Yin ◽  
Le Wang ◽  
Sheng-Mei Zhao

2006 ◽  
Vol 31 (14) ◽  
pp. 2106 ◽  
Author(s):  
David Méchin ◽  
Sung-Hoon Im ◽  
Vladimir I. Kruglov ◽  
John D. Harvey

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