Results 11 to 20 of about 108,515 (267)
Coherent optical frequency combs: From principles to applications
A coherent optical frequency comb is a kind of broad-spectrum light sources delivering equidistant frequencies, and correspondingly its temporal waveform appears as a sequence of ultrashort pulses.
Hao Zhang +8 more
doaj +1 more source
Coherent optical communications
Coherent optical communication systems became possible with development of the gas laser in the early 1960s. During the decade following development of the laser, Enloe and Rodda showed homodyne detection to be possible when they successfully phase-locked two gas lasers.
T. G. Hodgkinson +3 more
openaire +3 more sources
Ultrahigh-speed graphene-based optical coherent receiver
Graphene-based photodetectors have many advantages for applications. Here, the authors demonstrate a high-speed optical coherent receiver for optical communications based on graphene-on-plasmonic slot waveguide photodetectors.
Yilun Wang +11 more
doaj +1 more source
Coherent communication with linear optics [PDF]
We show how to implement several continuous-variable coherent protocols with linear optics. Noise can accumulate when implementing each coherent protocol with realistic optical devices. Our analysis bounds the level of noise accumulation. We highlight the connection between a coherent channel and a nonlocal quantum nondemolition interaction and give ...
Wilde, Mark M. +3 more
openaire +2 more sources
Demonstration of 100 Gbps coherent free-space optical communications at LEO tracking rates
Free-space optical communications are poised to alleviate the data-flow bottleneck experienced by spacecraft as traditional radio frequencies reach their practical limit. While enabling orders-of-magnitude gains in data rates, optical signals impose much
Shane M. Walsh +7 more
doaj +1 more source
Demultiplexing of high-speed Nyquist optical time-division multiplexed (N-OTDM) signal requires ultra-narrow local sampling pulse to avoid the severe inter-symbol-interference (ISI) between each tributary.
Lei Yue, Deming Kong, Yan Li, Jian Wu
doaj +1 more source
Nanophotonic coherent light-matter interfaces based on rare-earth-doped crystals [PDF]
Quantum light-matter interfaces (QLMIs) connecting stationary qubits to photons will enable optical networks for quantum communications, precise global time keeping, photon switching, and studies of fundamental physics.
Faraon, Andrei +3 more
core +2 more sources
Room temperature plasmon laser by total internal reflection [PDF]
Plasmon lasers create and sustain intense and coherent optical fields below light's diffraction limit with the unique ability to drastically enhance light-matter interactions bringing fundamentally new capabilities to bio-sensing, data storage ...
AV Akimov +30 more
core +2 more sources
10-Gb/s Long-Reach PON System With Low-Complexity Dispersion-Managed Coherent Receiver
We demonstrate 10-Gb/s transmission over more than 130 km of G.652 fiber using a simple directly modulated distributed feedback (DFB) laser and a new “chirp-managed” approach based on a low-complexity coherent receiver.
R. Corsini +3 more
doaj +1 more source
All-optical wavelength conversion based on four-wave mixing attracts intense interest in many areas, especially in optical fiber communications, due to the advantages of femtosecond response, modulation-format transparency, and high flexibility in ...
Zhao Ping +4 more
doaj +1 more source

