Results 141 to 150 of about 3,670,840 (396)

Analyzing Peak-to-Average Power Ratio Characteristics in Multi-Channel Intensity Modulation and Direct Detection Flexible Transceivers Deploying Inverse Fast Fourier Transform/Fast Fourier Transform-Based Processing. [PDF]

Sensors (Basel), 2023
Chen L, Huang X, Jin W, Wang X, Yang G, Jiang M, Huang Y, Tang J.   +7 more
europepmc   +1 more source

On the study of the FSO link performance under controlled turbulence and fog atmospheric conditions

, 2011
In this paper, the effect of turbulence and fog on the free space optical (FSO) communication systems for on off keying (OOK), pulse amplitude modulation (PAM) and subcarrier intensity modulation (SIM) based on binary phase shift keying (BPSK) is ...
Ghassemlooy, Zabih, Kandus, Gorazd, Kvicera, V., Leitgeb, Erich, Rajbhandari, Sujan, Perez Soler, Joaquin, Le Minh, Hoa   +6 more
core  

A tunable WDM wavelength converter based on cross phase modulation effects in normal dispersion holey fiber

, 2003
We demonstrate a tunable wavelength-division-multiplexing wavelength converter based on cross-phase modulation in just 5.8m of highly nonlinear normal dispersion holey fiber (HF) and incorporating a precise compression-tuned apodized fiber-grating filter.
Lee, J., Richardson, D., Ibsen, M., Richardson, D.J., Monro, T., Yusoff, Z., Monro, T.M., Lee, J.H., Belardi, W.   +8 more
core   +1 more source

Beyond intensity modulation: new approaches to pump-probe microscopy

, 2020
Pump-probe microscopy is an emerging nonlinear imaging technique based on high repetition rate lasers and fast intensity modulation. Here we present new methods for pump-probe microscopy that keep the beam intensity constant and instead modulate the ...
Warren S. Warren (456969), Martin C. Fischer (481183), Yue Zhou (71752), Jun Jiang (149215), David Grass (5949344)   +4 more
core   +1 more source

Recent developments in indoor optical wireless systems [PDF]

, 2008
An overview of the developments in optical wireless systems viewed from the traditional communications viewpoint of transmitter, channel and receiver is presented.
Leeson, Mark S., Higgins, Matthew D., Green, Roger, Joshi, Harita   +3 more
core   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

High-speed operation of optical exclusive OR circuit based on balanced detection and intensity modulation

The Journal of Engineering, 2015
We report the evaluated results of an optical exclusive OR (XOR) circuit for high-speed binary signals, which operates based on balanced detection and intensity modulation.
Koichi Takiguchi
doaj   +1 more source

Pretreatment synthetic magnetic resonance imaging predicts disease progression in nonmetastatic nasopharyngeal carcinoma after intensity modulation radiation therapy. [PDF]

Insights Imaging, 2023
Yang F, Wei H, Li X, Yu X, Zhao Y, Li L, Li Y, Xie L, Wang S, Lin M.   +9 more
europepmc   +1 more source

The 22-Year Hale Cycle in Cosmic Ray Flux – Evidence for Direct Heliospheric Modulation

, 2014
The ability to predict times of greater galactic cosmic ray (GCR) fluxes is important for reducing the hazards caused by these particles to satellite communications, aviation, or astronauts.
Thomas, SR, Lockwood, M, Owens, MJ
core  

Intensity modulation of light by light in a periodically poled MgO-doped lithium niobate crystal [PDF]

, 2015
Ping Hu, Guangzhen Li, Juan Huo, Yuanlin Zheng, and Xianfeng Chen and Xianfeng Chen   +4 more
openalex   +1 more source