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Turbulence-Resistant All Optical Relaying Based on Few-Mode EDFA in Free-Space Optical Systems
[article]
2018
arXiv
pre-print
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A dual-hop free space optical communication model based on the relay with two-mode EDFA is derived. The BER performance is numerically calculated. ...
We investigate the communication performance of a few-mode EDFA based all-optical relaying system for atmospheric channels in this paper. ...
Moreover, FM-EDFAs which could receive and amplify several spatial modes simultaneously have been used in preamplified receiver in FSO system at ECOC'17 to resist turbulence [22] . ...
arXiv:1812.10083v1
fatcat:qduxlymn5rh27dn4sks65qeuhu
Development of an ASIC preamplifier for electromagnetic sensor probes for monitoring space electromagnetic environments
2016
Earth, Planets and Space
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The success in developing the high robustness ASIC preamplifier leads to a future mission using a lot of palm-sized probes in space. ...
Multipoint observations of plasma waves are essential for separating spatial and temporal variations of a plasma turbulence. ...
Received: 1 October 2015 Accepted: 10 May 2016 ...
doi:10.1186/s40623-016-0470-9
fatcat:vi54edjowfclpk5z7q26dggo6u
Analysis of Free-Space Optics Development
2017
Metrology and Measurement Systems
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The article presents state of work in technology of free-space optical communications (Free Space Optics − FSO). ...
Both commercially available optical data links and their further development are described. The main elements and operation limiting factors of FSO systems have been identified. ...
Free Space Optics In general, an FSO link consists of an optical signal transmitter and a receiver. ...
doi:10.1515/mms-2017-0060
fatcat:j4ekcspzqjc77lgej27q55gwzy
Decibels versus dollars: long-range atmospheric optical communications on a tight budget
2008
Atmospheric Propagation of Electromagnetic Waves II
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While the use of larger transmitter and receiver lenses increases optical flux at the detector, their greatest advantage is in dramatically reducing the depth of the scintillation or rapid signal fading ...
communications. ...
on a free-space (unguided) optical system [ Fig. 3 ] with non-coherent sources is: ΦR ≈ GT • AT • AR • L (ref 18 ) S 2 Where: ΦR is the received power. ...
doi:10.1117/12.768227
fatcat:uifxmhpzhvffdlriqa7xq7brsq
Laser communication transmitter and receiver design
[chapter]
2007
Free-Space Laser Communications
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Free-space laser communication systems have the potential to provide flexible, high-speed connectivity suitable for long-haul intersatellite and deep-space links. ...
While spectral efficiency has long been a key design parameter in the telecommunications industry, the many THz of excess channel bandwidth in the optical regime can be used to improve receiver sensitivities ...
Free-space laser communication performance directly depends on the efficiency and sensitivity of optical transmitters and receivers. ...
doi:10.1007/978-0-387-28677-8_4
fatcat:qwucmajr3bg4rghyabdfrv7f2i
Laser communication transmitter and receiver design
2007
Journal of Optical and Fiber Communications Reports
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Free-space laser communication systems have the potential to provide flexible, high-speed connectivity suitable for long-haul intersatellite and deep-space links. ...
While spectral efficiency has long been a key design parameter in the telecommunications industry, the many THz of excess channel bandwidth in the optical regime can be used to improve receiver sensitivities ...
Free-space laser communication performance directly depends on the efficiency and sensitivity of optical transmitters and receivers. ...
doi:10.1007/s10297-006-0079-z
fatcat:w6pa3ddxeneybalrw4h7zwgcsq
Space Optical Links for Communication Networks
[chapter]
2020
Springer Handbooks
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2020 pre-print arXiv:2012.13166v1 fatcat:ncy6tos4c5ec5cdsvde4shd6fu
Free-space optical communication has finally emerged as a key technology for solving the increasing bandwidth limitations for space communication while reducing the size, weight and power of satellite ...
communication systems, and taking advantage of a license-free spectrum. ...
In addition, the simplicity of OOK receivers allows using a multi-mode fiber to couple the received signal into, which is relatively insensitive to atmospheric turbulence, as opposed to single-mode fibers ...
doi:10.1007/978-3-030-16250-4_34
fatcat:fw7pidjeszhzrhog2dt6gguyaq
Free-space optical communications link at 1550 nm using multiple-quantum-well modulating retroreflectors in a marine environment
2005
Optical Engineering: The Journal of SPIE
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A 1550-nm eye-safe, free-space optical communications link is demonstrated at rates up to 5 Mbits/s over a distance of 2 km in the Chesapeake Bay, using quantum-well-based modulating retroreflectors. ...
Free-space optical communications link at 1550 nm using multiple-quantum-well modulating retroreflectors in a marine environment 1. REPORT DATE
2005
2. REPORT TYPE
3. ...
One of the objectives of this series of free-space communication tests was to assess the feasibility of transmitting real-time video signals in the presence of atmospheric turbulence. ...
doi:10.1117/1.1906230
fatcat:y6cje3xpfzaxnmjy3w4be36t74
Ergodic Capacity of Triple-Hop All-Optical Amplify-and-Forward Relaying over Free-Space Optical Channels
[article]
2018
arXiv
pre-print
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In this paper, we propose a comprehensive research over triple hop all-optical relaying free-space optical (FSO) systems in the presence of all main noise sources including background, thermal and amplified ...
Using full CSI relaying, we derive the exact expressions for the noise variance at the destination. ...
INTRODUCTION The rapidly increasing need of very high data rate communications made free space optical (FSO) communication very popular during the past few years. ...
arXiv:1810.02171v1
fatcat:kc6j3ijgxzdvlhonw5f6ckpgee
Analog FM free-space optical communication based on a mid-infrared quantum cascade laser frequency comb
[article]
2021
arXiv
pre-print
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Here their applicability for free-space optical communication is demonstrated. ...
Exploiting the atmospheric transparency window at 4 μm, an optical communication with a signal-to-noise ratio up to 65 dB is realized, with a modulation bandwidth of 300 kHz. ...
Acknowledgements The authors gratefully thank Mauro Giuntini and Roberto Concas for useful discussions. ...
arXiv:2109.09465v1
fatcat:2d2r5ll2hjgphhkpibaibjetvi
Optical satellite networks
2005
OFC/NFOEC Technical Digest. Optical Fiber Communication Conference, 2005.
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Index Terms-Optical space communications, satellite communications, satellite networks. ...
With high-speed space optical crosslink being a reality, the construction of an optical satellite network as part of a larger integrated space-terrestrial network is now feasible. ...
One interesting property space optical communications has is that the power attenuation due to free-space diffraction loss is only inversely proportional to the square of the link distance, whereas optical ...
doi:10.1109/ofc.2005.192649
fatcat:3wwdqrqirve2hbslbqjoqpib7e
Optical satellite networks
2003
Journal of Lightwave Technology
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Index Terms-Optical space communications, satellite communications, satellite networks. ...
With high-speed space optical crosslink being a reality, the construction of an optical satellite network as part of a larger integrated space-terrestrial network is now feasible. ...
One interesting property space optical communications has is that the power attenuation due to free-space diffraction loss is only inversely proportional to the square of the link distance, whereas optical ...
doi:10.1109/jlt.2003.819534
fatcat:cmtz2umuz5bnti4h6yfpuqgjyy
Spatial-Mode Diversity and Multiplexing for FSO Communication With Direct Detection
2018
IEEE Transactions on Communications
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This work investigates spatial-mode multiplexing (SMM) for practical free-space optical communication (FSO) systems using direct detection. ...
It is demonstrated that mode diversity can significantly improve the outage probability and the outage achievable rate performance of the multiplexed channels in SMM FSO systems degraded by turbulence. ...
INTRODUCTION Spatial-mode multiplexing (SMM) in free space optical communications (FSO) is the counterpart of the mode-division multiplexing (MDM) in fibre optics that has recently attracted more attention ...
doi:10.1109/tcomm.2018.2795616
fatcat:aszeugknezefvcu46bpuvie2fq
Experimental performance evaluation of non-line-of-sight ultraviolet communication systems
2007
Free-Space Laser Communications VII
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The tradeoffs among communication range, received number of photons, and bit-error-rate are revealed via field measurement results. ...
, up to an order of magnitude increase in the received number of photons in some cases, thus significantly improving link performance. ...
Case (a) requires minimum transmitter and receiver positioning in a fully NLOS mode. ...
doi:10.1117/12.735183
fatcat:znarugouizda3fznwt7bbb4da4
Review of superconducting nanowire single-photon detector system design options and demonstrated performance
2014
Optical Engineering: The Journal of SPIE
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Optical interfaces to the detectors have been based on fiber coupling, either directly to the detector or through the substrate, using both single-mode and multimode fibers with different approaches to ...
The advantages and tradeoffs of various approaches to efficient optical coupling, electrical readout, and SNSPD design are described and contrasted. ...
Using small optics provides considerable flexibility in optimizing the optical arrangement to demagnify the light from an SMF, multimode fiber, or a free-space optical beam. ...
doi:10.1117/1.oe.53.8.081907
fatcat:ytkurmzwzvbx3bj2eyivcab4pu
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