Results 31 to 40 of about 51,099 (299)
Modeling and performance of a 100-element pHEMT grid amplifier [PDF]
, 1996 A 100-element hybrid grid amplifier has been fabricated, The active devices in the grid are custom-made pseudomorphic high electron mobility transistor (pHEMT) differential-pair chips.
De Lisio, Michael P. +6 more
core +1 more source
Results in Physics, 2019 A modern wideband and flat gain erbium-doped fiber amplifier (EDFA) is suggested and accomplished, by employing a recently fabricated hafnia-bismuth-erbium doped fiber (HB-EDF) and zirconia-erbium doped fiber (Zr-EDF) as a hybrid active fiber.
Alabbas A. Al-Azzawi +7 more
doaj +1 more source
PhotonicsMulti-band optical communication presents a promising avenue for the significant enhancement of fiber-optic transmission capacity without incurring additional costs related to new cable deployment via the utilization of the bandwidth beyond the ...
Cheng Guo +6 more
doaj +1 more source
Efficient protection schemes for hybrid WDM/TDM passive optical networks [PDF]
, 2012 Hybrid WDM/TDM Passive Optical Network (PON) is a promising candidate for next-generation optical access (NGOA) solutions as it is able to offer a high splitting ratio and consequently achieves a relatively low cost and power consumption on a per-user ...
Chen, Jiajia +5 more
core +1 more source
Applied Sciences, 2020 The purpose of this article is to propose a new configuration based on OCDMA and Fast-OFDM techniques for access network applications. A hybrid intensity modulation with direct detection, fast orthogonal frequency-division multiplexing–code division ...
Hichem Mrabet
doaj +1 more source
Simulating an ultra-broadband concept for Exawatt-class lasers
Scientific Reports, 2021 The rapid development of the optical-cycle-level ultra-fast laser technologies may break through the bottleneck of the traditional ultra-intense laser [i.e., Petawatt (PW, 1015 W) laser currently] and enable the generation of even higher peak-power ...
Zhaoyang Li +2 more
doaj +1 more source
Noise figure of hybrid optical parametric amplifiers
Optics Express, 2012 Following a fiber optical parametric amplifier, used as a wavelength converter or in the phase-sensitive mode, by a phase-insensitive amplifier (PIA) can significantly reduce four-wave mixing between signals in broadband systems. We derive the quantum mechanical noise figures (NF) for these two hybrid configurations, and show that adding the PIA only ...
openaire +4 more sources
Study of millimeter wave phase shift in 40 GHz hybrid mode locked lasers [PDF]
, 2009 An investigation into using hybrid mode-locked lasers to implement millimeter wave phase shift is presented. The phase shift is measured directly using a vector network analyzer enabling straightforward characterization of such systems.
Cryan, MJ, Khawaja, BAM
core +2 more sources
Frontiers in Computer ScienceFree space optical (FSO) systems offer a desirable and affordable way of providing communication services in remote locations. They provide secure wireless transmission without the requirement for licensing and with lower implementation costs.
Hafiz Muhammad Obaid +6 more
doaj +1 more source
Ultra-high on-chip optical gain in erbium-based hybrid slot waveguides
Nature Communications, 2019 Realizing efficient on-chip amplification in silicon is challenging due to either non-compatible integration or small gain per unit length of the amplifier material.
John Rönn +10 more
doaj +1 more source