Pulse-compression ghost imaging lidar via coherent detection

Chenjin Deng; Wenlin Gong; Shensheng Han

doi:10.1364/oe.24.025983

Pulse-compression ghost imaging lidar via coherent detection

Optics Express ◽

10.1364/oe.24.025983 ◽

2016 ◽

Vol 24 (23) ◽

pp. 25983 ◽

Cited By ~ 12

Author(s):

Chenjin Deng ◽

Wenlin Gong ◽

Shensheng Han

Keyword(s):

Pulse Compression ◽

Coherent Detection ◽

Ghost Imaging

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Experimental demonstration of pulse-compression ghost imaging via coherent detection

AOPC 2020: Optical Sensing and Imaging Technology ◽

10.1117/12.2575722 ◽

2020 ◽

Author(s):

Long Pan ◽

Chenjin Deng ◽

Wenlin Gong ◽

Shensheng Han

Keyword(s):

Pulse Compression ◽

Coherent Detection ◽

Ghost Imaging ◽

Experimental Demonstration

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Distributed Fiber Birefringence Measurement Using Pulse-Compression Φ-OTDR

Photonic Sensors ◽

10.1007/s13320-020-0604-3 ◽

2020 ◽

Author(s):

Yongxiang Chen ◽

Yun Fu ◽

Ji Xiong ◽

Zinan Wang

Keyword(s):

Spatial Resolution ◽

Pulse Compression ◽

Single Mode ◽

Single Mode Fiber ◽

Time Domain Reflectometry ◽

Coherent Detection ◽

Compression Phase ◽

Optical Time Domain Reflectometry ◽

Fiber Birefringence ◽

Optical Time

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.

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