Results 51 to 60 of about 7,939 (303)

Investigation of turbulence effect on the free space optical link for ground-to-train communications [PDF]

, 2011
There is a growing demand for high mobility and ultrafast internet/data services which drives the motivation for free space optical (FSO) communications for high speed trains.
Ghassemlooy, Zabih, Paudel, Rupak, Livingstone, Bryan, Rajbhandari, Sujan, Le Minh, Hoa   +4 more
core  

Electro-optic co-design for next generation silicon optical transmitters [PDF]

, 2021
This paper discusses our progress on high-speed optical transmitters for next generation intra-datacenter interconnects. Silicon integrated photonic systems have a key role to play in this evolution by allowing compact, fast, innovative and cost ...
Roelkens, Günther, Ossieur, Peter, Breyne, Laurens, Vanhoecke, Michael, Yin, Xin, Lambrecht, Joris, Bauwelinck, Johan   +6 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Nanophotonic Devices for Optical Interconnect [PDF]

, 2010
We review recent progress in nanophotonic devices for compact optical interconnect networks. We focus on microdisk-laser-based transmitters and discuss improved design and advanced functionality including all-optical wavelength conversion and flip-flops.
Van Thourhout, D., Spuesens, ThijsTW05000080057130802000488975FBD436DC-F0ED-11E1-A9DE-61C894A0A6B4, Morthier, G., Roelkens, Günther, Regreny, P., Kumar, Rajesh, Kopp, Christophe, Morthier, Geert, Roelkens, GüntherTW050019970516598010016648210000-0002-4667-5092F6876ADC-F0ED-11E1-A9DE-61C894A0A6B4, Rojo-Romeo, Pedro, Rojo-Romeo, P., Spuesens, Thijs, Raz, Oded, Spuesens, T., Van Thourhout, DriesTW058010010572560000-0003-0111-431XF4F6F962-F0ED-11E1-A9DE-61C894A0A6B4, Selvaraja, shankar kumarTW05002005713557801002125771F83539B8-F0ED-11E1-A9DE-61C894A0A6B4, Roelkens, G., Van Thourhout, Dries, Liu, Liu, Morthier, GeertTW058010006923930000-0003-1819-6489F45CEBD8-F0ED-11E1-A9DE-61C894A0A6B4, Selvaraja, shankar kumar, Mandorlo, F., Kumar, RajeshUGent000081417049802000450074FB1DE3A0-F0ED-11E1-A9DE-61C894A0A6B4, Kopp, C., Liu, LiuTW05802000203736F9047232-F0ED-11E1-A9DE-61C894A0A6B4, Thourhout, Van, D., Raz, O., Selvaraja, S.K., Grenouillet, Laurent, Grenouillet, L., Mandorlo, Fabien, Kumar, R., Regreny, Philippe   +32 more
core   +2 more sources

Seeded Optical Cavity for Resonant Beam-Based Communication

IEEE Access
Optical resonant beam-based communication (RBComm) systems offer a promising solution to current wireless communication challenges due to their innate self-alignment, high carrier frequency, intrinsic safety features, and potential for high data rates ...
Kevin A. Lindstrom, Tobias Saule, Carlos A. Trallero-Herrero, Shengli Zhou, Georgios B. Giannakis, Mark Semco, Ayah Abdallah   +6 more
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Effects of crosstalk in WDM optical label switching networks due to wavelength switching of a tunable laser [PDF]

, 2006
rosstalk caused by switching events in fast tunable lasers in an optical label switching (OLS) system is investigated for the first time. A wavelength-division-multiplexed OLS system based on subcarrier multiplexed labels is presented which employs a 40 ...
Barry, Liam P., Smyth, Frank, Cotter, D., Ellis, A.D., Kaszubowska-Anandarajah, Aleksandra, Mishra, A.K., Connolly, Eoin M.   +6 more
core   +1 more source

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

FEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour, Christine Volmert, Valentina Piano   +2 more
wiley   +1 more source

All-Optical Pulse Shaping for Highest Spectral Efficiency [PDF]

, 2015
Pulse shaping gives communications engineers another degree of freedom in designing a link. It holds promise to allow extending transmission reach, achieve optical multiplexing at highest spectral efficiency or to limit nonlinear distortions.
Leuthold, Juerg, Juerg Leuthold, Brès, Camille-Sophie, Camille-Sophie Brès   +3 more
core   +1 more source

Energy‐Efficient 8‐PAM Optical DAC Design for Visible Light Communication Systems

IET Optoelectronics
This paper presents a cost‐effective and energy‐efficient optical digital‐to‐analog converter (ODAC) transmitter scheme for visible light communication (VLC) systems.
Oğuzhan Başer, Mehmet Ali Küçük, Cenk Albayrak, Kadir Türk   +3 more
doaj   +1 more source