High Sensitivity Receiver Demonstration Using Phase Sensitive Amplifier for Free-Space Optical Communication

2017 ◽  
Author(s):  
Ravikiran Kakarla ◽  
Kovendhan Vijayan ◽  
Abel Lorences-Riesgo ◽  
Peter A. Andrekson
Keyword(s):  
Optical Communication ◽  
Free Space ◽  
High Sensitivity ◽  
Free Space Optical Communication ◽  
Free Space Optical ◽  
Space Optical Communication ◽  
Phase Sensitive

scholarly journals Turbulence-Resistant FSO Communication Using a Few-Mode Pre-Amplified Receiver

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Huiyuan Liu ◽  
Bin Huang ◽  
Juan Carlos Alvarado Zacarias ◽  
He Wen ◽  
Haoshuo Chen ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Optical Communication ◽  
Free Space ◽  
High Sensitivity ◽  
Single Mode ◽  
Free Space Optical Communication ◽  
Free Space Optical ◽  
Space Optical Communication ◽  
Gaussian Mode ◽  
Noise Statistics

Abstract Leveraging recent advances in space-division multiplexing, we propose and demonstrate turbulence-resistant free-space optical communication using few-mode (FM) pre-amplified receivers. The rationale for this approach is that a distorted wavefront can be decomposed into a superposition of the fundamental Gaussian mode and high-order modes of a few-mode fiber. We present the noise statistics and the sensitivity of the FM pre-amplified receiver, followed by experimental and numerical comparisons between FM pre-amplified receivers and single-mode (SM) pre-amplified receivers with or without adaptive optics. FM pre-amplified receivers for FSO can achieve high sensitivity, simplicity and reliability.

Simulation modeling of free space optical communication system

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ajay Sharma ◽  
Rajinder Singh Kaler
Keyword(s):  
Optical Communication ◽  
Free Space ◽  
Simulation Modeling ◽  
Additive White Gaussian Noise ◽  
Wireless Channel ◽  
Free Space Optical Communication ◽  
Optical Wireless ◽  
Free Space Optical ◽  
Wireless Signal ◽  
Space Optical Communication

Abstract The optical wireless communication has been designed by developing a model with the support of MATLAB simulator using Simulink where channel considered to be a free space. In this model, Additive White Gaussian Noise (AWGN) channel has used to analyze bit error rate (BER) and power loss of optical wireless signal at receiver. The consequence due to turbulence in atmosphere of free space on transmitted signal has examined. The BER and signal power have extremely ruined on rigorous atmospheric unstable condition even for a short distance in an optical wireless channel. The BER of less than 10−3 has been achieved for free space optical communication considered to be an excellent BER for FSO.

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