Results 61 to 70 of about 106,674 (292)

The Design of 50 GHz Gallium Arsenide Electro-Optic Modulator Arrays for Satellite Communications Systems

Frontiers in Physics, 2021
Considerations are presented for the design of GaAs traveling-wave electro-optic modulator arrays for space data-link applications. Central to the modulator design is a low loss folded optical configuration giving direct, straight-line radio frequency ...
Robert Graham Walker, Yi Zhou
doaj   +1 more source

High-Performance Hybrid Silicon and Lithium Niobate Mach-Zehnder Modulators for 100 Gbit/s and Beyond

, 2018
Optical modulators are at the heart of optical communication links. Ideally, they should feature low insertion loss, low drive voltage, large modulation bandwidth, high linearity, compact footprint and low manufacturing cost.
Cai, Xinlun, Chen, Hui, Gao, Shengqian, Guo, Changjian, He, Mingbo, Jian, Jian, Liu, Lin, Liu, Liu, Ren, Yuxuan, Ruan, Ziliang, Sun, Shihao, Wen, Xueqin, Xu, Mengyue, Xu, Yongsheng, Yu, Siyuan, Zhou, Lidan   +15 more
core   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Photonic Techniques for Generating a Single RF Sideband With No Second Order Sidebands

IEEE Photonics Journal, 2022
Two structures that can realise optical single sideband modulation without generating both second order upper and lower sidebands are presented.
Chongjia Huang, Erwin H. W. Chan
doaj   +1 more source

Low-error and broadband microwave frequency measurement in a silicon chip

, 2015
Instantaneous frequency measurement (IFM) of microwave signals is a fundamental functionality for applications ranging from electronic warfare to biomedical technology.
Aalto, Timo, Casas-Bedoya, Alvaro, Eggleton, Benjamin J., Harjanne, Mikko, Kapulainen, Markku, Marpaung, David, Morrison, Blair, Pagani, Mattia, Zhang, Yanbing   +8 more
core   +1 more source

Theory of Electro-optic Modulation via a Quantum Dot Coupled to a Nano-resonator [PDF]

, 2009
In this paper, we analyze the performance of an electro-optic modulator based on a single quantum dot strongly coupled to a nano-resonator, where electrical control of the quantum dot frequency is achieved via quantum confined Stark effect.
Andrei Faraon, Arka Majumdar, Englund, Englund, Englund, Faraon, Faraon, Fushman, Hitoshi, Husko, Jelena Vuckovic, Liu, Liu, Miller, Nicolas Manquest, O’Brien, Politi, Szymanski, Vlasov, Waks, Xu, Xu   +21 more
core   +2 more sources

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

All-optical demultiplexing using an electroabsorption modulator [PDF]

Conference on Lasers and Electro-Optics (CLEO 2000). Technical Digest. Postconference Edition. TOPS Vol.39 (IEEE Cat. No.00CH37088), 2000
In the 1990s, the electroabsorption modulator (EAM) has found a wide range of applications. Functionalities such as pulse generation and demultiplexing by electrical modulation have been demonstrated using an EAM. Recently, all-optical wavelength conversion, demultiplexing, and signal regeneration, have also been experimentally demonstrated.
Højfeldt, Sune, Bischoff, Svend, Mørk, Jesper   +2 more
openaire   +3 more sources

Experimental characterization of CMOS photonic devices [PDF]

, 2016
Current electrical interconnects in super-computers and high-performance processors present a bottleneck in terms of bandwidth and power consumption. A migration to the optical domain in order to cope with the connectivity between units (e.g.
Gómez Gonzalvo, Alberto
core   +1 more source

Optical manipulation of quantum dot excitons strongly coupled to photonic crystal cavities [PDF]

, 2010
In this paper, we review some recent cavity quantum electrodynamic (CQED) experiments with single quantum dot exciton coupled to photonic crystal cavities, performed in our group. We show how the coupled quantum-dot/cavity system can be used to modulate
Englund, Dirk, Faraon, Andrei, Kim, Hyochul, Majumdar, Arka, Manquest, Nicolas, Petroff, Pierre, Vučković, Jelena   +6 more
core   +1 more source