Optical Free-Space Communication on Earth and in Space regarding Quantum Cryptography Aspects [PDF]
Mobile FSO Communication links have gained signi cant at- tention over the last years due to their increasing maturity. They are used in point to point link scenarios where the high gain in power efficiency and datarate is crucial, compared to state-of ...
Fuchs, Christian +3 more
core +1 more source
MIMO free-space optical communication employing subcarrier intensity modulation in atmospheric turbulence channels [PDF]
In this paper, we analyse the error performance of transmitter/receiver array free-space optical (FSO) communication system employing binary phase shift keying (BPSK) subcarrier intensity modulation (SIM) in clear but turbulent atmospheric channel ...
Ghassemlooy, Zabih +7 more
core +1 more source
2.4-W Narrow-Linewidth Q-Switched
A narrow-linewidth 793-nm diode-pumped Tm3+ -doped double-clad silica fiber laser operated at 2 μm and actively Q-switched with an acousto-optic modulator is reported.
Qijie Huang +4 more
doaj +1 more source
A Dual-Wavelength Ocean Lidar for Vertical Profiling of Oceanic Backscatter and Attenuation
Ocean water column information profiles are essential for ocean research. Currently, water column profiles are typically obtained by ocean lidar instruments, including spaceborne, airborne and shipborne lidar, most of which are equipped with a 532 nm ...
Kaipeng Li +13 more
doaj +1 more source
Free-space optical communication employing subcarrier modulation and spatial diversity in atmospheric turbulence channel [PDF]
An expression for the bit error rate of a multiple subcarrier intensity-modulated atmospheric optical communication system employing spatial diversity is derived. Spatial diversity is used to mitigate scintillation caused by atmospheric turbulence, which
Ghassemlooy, Zabih +9 more
core +1 more source
Tailoring Laser Propulsion for Future Applications in Space [PDF]
Pulsed laser propulsion may turn out as a low cost alternative for the transportation of small payloads in future. In recent years DLR investigated this technology with the goal of cheaply launching small satellites into low earth orbit (LEO) with ...
Eckel, Hans-Albert, Scharring, Stefan
core +1 more source
Monitoring of Atmospheric Carbon Dioxide over a Desert Site Using Airborne and Ground Measurements
Accurate monitoring of atmospheric carbon dioxide (CO2) is of great significance for studying the carbon cycle. Compared to ground observational sites, airborne observations cover a wider area, which help in effectively monitoring the distribution of CO2
Qin Wang +6 more
doaj +1 more source
High-Gain Optical Injection Locking Amplifier in Phase-Coherent Optical Frequency Transmission
Optical amplification, which is necessary for extending the distance of optical frequency transfer, has a significant impact on the transmission performance.
Zitong Feng +7 more
doaj +1 more source
A Survey on Laser Space Network: Terminals, Links, and Architectures
Due to the high directionality and short wavelength of laser transmission in space, satellite laser communication can achieve high speed, wide bandwidth, high precision, and high security with no electromagnetic spectrum constraints.
Rui Li +4 more
doaj +1 more source
Simultaneous laser ranging and communication from an Earth-based satellite laser ranging station to the Lunar Reconnaissance Orbiter in lunar orbit [PDF]
We report a free space laser communication experiment from the satellite laser ranging (SLR) station at NASA Goddard Space Flight Center (GSFC) to the Lunar Reconnaissance Orbiter (LRO) in lunar orbit through the on board one-way Laser Ranging (LR ...
Skillman, David R. +27 more
core +1 more source

