Results 31 to 40 of about 1,149,379 (214)
Manchester Return-to-Zero On–Off Keying Modulation for Free-Space Optical Communication
PhotonicsThis paper proposes a Manchester return-to-zero on–off keying (M-RZ-OOK) modulation for free-space optical (FSO) communication. M-RZ-OOK modulation is achieved by introducing Manchester coding into the RZ-OOK format.
Wenhao Zong +4 more
doaj +1 more source
An 80 Gb/s Silicon Photonic Modulator Based on the Principle of Overlapped Resonances
IEEE Photonics Journal, 2017 We report a silicon photonic modulator based on a Mach–Zehnder interferometer (MZI) loaded with a microring modulator (MRM) on one arm and a microring resonator (MRR) on the other arm.
Rui Li +7 more
doaj +1 more source
Application and Analysis of Performance of DQPSK Advanced Modulation Format in Spectral Amplitude Coding OCDMA [PDF]
Mehran University Research Journal of Engineering and Technology, 2014 SAC (Spectral Amplitude Coding) is a technique of OCDMA (Optical Code Division Multiple Access) to encode and decode data bits by utilizing spectral components of the broadband source.
Abdul Latif Memon +2 more
doaj
Multi-Format Wavelength Conversion Using Quantum Dash Mode-Locked Laser Pumps
Photonics, 2015 We investigate and compare the performance of wavelength conversion for two different non-return-to-zero (NRZ) modulation formats at 40 Gb/s: on off keying (OOK) and differential phase-shift keying (DPSK).
Yousra Ben M’Sallem +3 more
doaj +1 more source
Performance Evaluation of NRZ-OOK and Carrier-Less Amplitude Phase Modulation in Li-Fi Environment
Journal of Physics, Conference Series, 2022 Light Fidelity (Li-Fi) is a wireless technology that utilizes light emitting diodes to convey data. Li-Fi has emerged as a promising alternative to radio frequency communication technology in recent years.
A. Zaiton +4 more
semanticscholar +1 more source
3D‐Nanoprinted Fluidically Steerable Soft Robotic Microcatheters
Advanced Robotics Research, EarlyView.This work introduces a ∼3‐French (1 mm‐in‐diameter) soft robotic microcatheter fabricated by means of two‐photon direct laser writing. The 3D‐printed microcatheter enables remote, on‐demand steering via microfluidic actuation for guidewire‐free navigation of vascular networks as well as microcatheter‐mediated delivery of fluidic payloads to target ...
Bailey M. Felix +17 more
wiley +1 more source
Theoretical and Experimental Investigation of Differential Modulation and Detection in FSO Systems
PhotonicsIn free-space optical (FSO) communication systems, on–off keying (OOK) modulation is widely used due to its simplicity. However, systems applying OOK suffer from the BER floor in atmospheric turbulence channels, leading to persistently high BER even at ...
Hao Zhou +6 more
doaj +1 more source
Laser &Photonics Reviews, EarlyView.Epitaxial growth forms III–V membranes directly atop the silicon waveguide layer on SOI, while in‐plane in situ doping defines lateral p–i–n InP/InGaAs junctions in a single growth step. The membrane photodetectors achieve 50 Gb/s NRZ‐OOK operation.
Zhao Yan +10 more
wiley +1 more source
IEEE Photonics Journal, 2015 Optical orthogonal frequency-division multiplexing (OFDM) with advanced modulation format [e.g., quadrature amplitude modulation (QAM) and quadrature phase-shift keying (QPSK)] provides many transmission advantages.
C. W. Hsu, C. W. Chow, C. H. Yeh
doaj +1 more source
Functional Ecology, Volume 40, Issue 7, Page 2011-2022, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Host‐plant quality and ambient temperature are key environmental drivers of herbivorous insect performance, affecting growth, development, and survival. While temperature accelerates physiological processes in ectothermic insects, nutrient limitation in host plants can ...
Berber M. J. W. Meulepas +4 more
wiley +1 more source