Results 11 to 20 of about 3,038,754 (316)

Optimization of optical data transmitters for 40-Gb/s lightwave systems using frequency resolved optical gating [PDF]

open access: yesIEEE Photonics Technology Letters, 2002
The measurement technique of frequency resolved optical gating has been used to optimize the phase of a 40-GHz train of optical pulses generated using a continuous-wave laser gated with an external modulator. This technique will be vital for optimization
L. Barry   +5 more
semanticscholar   +3 more sources

Improved Power Budget of 112 Gb/s/$\lambda$ Intra-Datacentre Links Using a Split-Carrier Transmitter Architecture

open access: yesIEEE Photonics Journal, 2019
A split-carrier transmitter is proposed to improve loss budget for short distance 100 G-per-wavelength intra-datacentre links. By applying a low-complexity hardware modification to the transmitter, the proposed architecture reduces transmitter ...
Thomas Gerard   +6 more
doaj   +1 more source

Classical benchmarking for microwave quantum illumination

open access: yesIET Quantum Communication, 2021
Quantum illumination theoretically promises up to a 6 dB error‐exponent advantage in target detection over the best classical protocol. The advantage is maximised by a regime that includes a very high background, which occurs naturally when one considers
Athena Karsa, Stefano Pirandola
doaj   +1 more source

Semiconductor Multimaterial Optical Fibers for Biomedical Applications

open access: yesBiosensors, 2022
Integrated sensors and transmitters of a wide variety of human physiological indicators have recently emerged in the form of multimaterial optical fibers.
Lingyu Shen   +5 more
doaj   +1 more source

Resonant tunneling diode oscillators for optical communications [PDF]

open access: yes, 2017
The ability to use resonant tunneling diodes (RTDs) as both transmitters and receivers is an emerging topic, especially with regards to wireless communications. Successful data transmission has been achieved using electronic RTDs with carrier frequencies
Al-Khalidi, Abdullah   +7 more
core   +2 more sources

Quantitative analysis of optical network unit sleep technique with maintained latency for asymmetric usage by residential users

open access: yesThe Journal of Engineering, 2013
This study provides an insight into the effectiveness of an optical network unit (ONU) sleep technique, where a subcomponent of the ONU is powered down during the absence of input traffic.
Susumu Nishihara   +5 more
doaj   +1 more source

Bandwidth-Efficient WDM-CAP-PON Using Digital Hilbert Single-Sideband Modulation

open access: yesIEEE Photonics Journal, 2015
We propose a wavelength division multiplexing-carrier-less amplitude/phase modulation-passive optical network (WDM-CAP-PON) downstream with enhanced bandwidth efficiency using low-cost digital Hilbert single-sideband modulation.
Z. Dong, J. Yu, J. Lu
doaj   +1 more source

Dynamic FOV visible light communications receiver for dense optical networks [PDF]

open access: yes, 2019
This study explores how the field-of-view (FOV) of a visible light communications (VLCs) receiver can be manipulated to realise the best signal-to-noise ratio (SNR) while supporting device mobility and optimal access point (AP) selection.
Abdalla, I.   +2 more
core   +1 more source

Laser-induced ultrasound transmitters for large-volume ultrasound tomography

open access: yesPhotoacoustics, 2022
We present a protocol for the design, fabrication and characterisation of laser-induced ultrasound transmitters with a specific, user-defined frequency response for the purpose of ultrasound tomography of large-volume biomedical samples.
D. Thompson   +3 more
doaj   +1 more source

Optical Transmitters without Driver Amplifiers—Optimal Operation Conditions

open access: yesApplied Sciences, 2018
An important challenge in optical communications is the generation of highest-quality waveforms with a Mach–Zehnder modulator with a limited electrical swing (Vpp).
Arne Josten   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy