Connecting the universe: Challenges, mitigation, advances, and link engineering
With the large number of deep space (DS) missions anticipated by the end of this decade,
reliable-high capacity DS communication systems are needed more than ever …
reliable-high capacity DS communication systems are needed more than ever …
Multi-aperture digital coherent combining for next-generation optical communication receivers
TM Yarnall, DJ Geisler, ML Stevens… - … on Space Optical …, 2015 - ieeexplore.ieee.org
Space terminals for free-space optical communication systems are under constant pressure
to reduce their size, weight, and power profiles. Ground terminals with large collection areas …
to reduce their size, weight, and power profiles. Ground terminals with large collection areas …
The Andromeda Study: A Femto-Spacecraft Mission to Alpha Centauri
This paper discusses the physics, engineering and mission architecture relating to a gram-
sized interstellar probe propelled by a laser beam. The objectives are to design a fly-by …
sized interstellar probe propelled by a laser beam. The objectives are to design a fly-by …
Multi-gigabit coherent communications using low-rate FEC to approach the Shannon capacity Limit
DJ Geisler, V Chandar, TM Yarnall… - CLEO: Science and …, 2015 - opg.optica.org
Multi-Gigabit Coherent Communications Using Low-Rate FEC to Approach the Shannon
Capacity Limit Page 1 SW1M.2.pdf CLEO:2015 © OSA 2015 Multi-Gigabit Coherent …
Capacity Limit Page 1 SW1M.2.pdf CLEO:2015 © OSA 2015 Multi-Gigabit Coherent …
Performance Evaluation of Optically Preamplified M-ary PPM Systems for Free-Space Optical Communications
S Hamid - 2013 - dspace.aus.edu
M-ary pulse position modulation (M-ary PPM) has been widely considered as an attractive
solution for increasing the bit rates in free-space optical (FSO) communications. Besides …
solution for increasing the bit rates in free-space optical (FSO) communications. Besides …
Performance of optically-preamplified, direct-detection, M-ary PPM for inter-satellite links
SH Mohamed, AF Elrefaie, MS Hassan… - 2019 Wireless …, 2019 - ieeexplore.ieee.org
In this paper, we evaluate the end-to-end performance of optically-preamplified, direct-
detection, 16-ary and 64-ary Pulse Position Modulation (PPM) receivers with optical Fabry …
detection, 16-ary and 64-ary Pulse Position Modulation (PPM) receivers with optical Fabry …
Record Photon Information Efficiency with Optical Clock Transmission and Recovery of 12.5 bits/photon After 77 dB of Optical Path Loss
We experimentally demonstrate optical detection at 12.5 bits per incident photon, 9.4 dB
higher than the theoretical limit of conventional coherent detection. The signal undergoes 77 …
higher than the theoretical limit of conventional coherent detection. The signal undergoes 77 …
Performance of optically-preamplified PDM-BPSK-M-ary PPM and PDM-QPSK-M-ary PPM systems with finite extinction ratio
SH Mohamed, MS Hassan… - 2015 IEEE 8th GCC …, 2015 - ieeexplore.ieee.org
In this paper, we evaluate the performance of optically preamplified homodyne receivers for
combined modulation schemes. The combined modulation schemes include polarization …
combined modulation schemes. The combined modulation schemes include polarization …
Digital coherent receivers for passive optical networks
DJP Lavery - 2013 - discovery.ucl.ac.uk
The work presented herein explores the use of digital coherent receivers in loss limited
transmission with a view to implementation in a 100 km long-reach passive optical network …
transmission with a view to implementation in a 100 km long-reach passive optical network …
Stacking modulation formats for highest-sensitivity
A Ludwig, ML Schulz, PC Schindler… - … Research, Silicon and …, 2014 - opg.optica.org
Stacking Modulation Formats for Highest-Sensitivity Page 1 JM2B.2.pdf Advanced
Photonics for Communications © 2014 OSA Stacking Modulation Formats for Highest-Sensitivity …
Photonics for Communications © 2014 OSA Stacking Modulation Formats for Highest-Sensitivity …