Results 21 to 30 of about 5,328,774 (332)

Investigation of mode coupling in strained and unstrained multimode step-index POFs using the Langevin equation

Heliyon, 2023
The Langevin equation (LE) is used to evaluate mode coupling in multimode step-index polymer optical fiber (SI POF) that is both unstrained and strained.
Svetislav Savović, Konstantinos Aidinis, Alexandar Djordjevich, Rui Min   +3 more
doaj   +1 more source

Non-geometric tilt-to-length coupling in precision interferometry: mechanisms and analytical descriptions

, 2023
This paper is the second in a set of two investigating tilt-to-length (TTL) coupling. TTL describes the cross-coupling of angular or translational jitter into an interferometric phase signal and is an important noise source in precision interferometers ...
M. Hartig, S. Schuster, G. Heinzel, G. Wanner   +3 more
semanticscholar   +1 more source

Optical Suppression of Tilt-to-Length Coupling in the LISA Long-Arm Interferometer [PDF]

Physical Review Applied, 2020
The arm length and the isolation in space enable LISA to probe for signals unattainable on ground, opening a window to the sub-Hz gravitational-wave universe.
M. Chwalla, K. Danzmann, M. D. Álvarez, J. Delgado, G. F. Barranco, E. Fitzsimons, O. Gerberding, G. Heinzel, C. Killow, M. Lieser, M. Perreur-Lloyd, D. Robertson, S. Schuster, T. S. Schwarze, M. Tröbs, G. Wanner, H. Ward, M. Zwetz   +17 more
semanticscholar   +1 more source

Anomalous Optical Propagation and Potential Sensitivity Enhancement in a Micro-Coil Resonator Based on Microfiber

IEEE Photonics Journal, 2021
The resonance characteristics of the micro-coil resonator(MCR) with different turns and coupling conditions are presented, which show that the effective length of the MCR with small coupling coefficient at primary resonant is independent of the turns ...
Feilin Zhang, Xiyuan Chen
doaj   +1 more source

Design and Analysis of Punctured Terminated Spatially Coupled Protograph LDPC Codes With Small Coupling Lengths

IEEE Access, 2018
Spatially coupled protograph (SC-P) low-density parity-check codes can achieve excellent performance and simple implementation when the coupling length is sufficiently large. However, in the case of small coupling lengths, terminated SC-P (TE-SC-P) codes
Zhaojie Yang, Yi Fang, Guojun Han, Guofa Cai, Francis C. M. Lau   +4 more
doaj   +1 more source

Polarization Beam Splitter Based on Si₃N₄/SiO₂ Horizontal Slot Waveguides for On-Chip High-Power Applications

Sensors, 2020
In this paper, we propose an Si3N4/SiO2 horizontal-slot-waveguide-based polarization beam splitter (PBS) with low nonlinearity for on-chip high-power systems.
Yuxi Fang, Changjing Bao, Zhonghan Wang, Yange Liu, Lin Zhang, Hao Huang, Yongxiong Ren, Zhongqi Pan, Yang Yue   +8 more
doaj   +1 more source

Coupling effect in substation ground measurements [PDF]

Serbian Journal of Electrical Engineering, 2012
A method to measure ground impedance in various soil structures is described, which takes into account inductive coupling between current and potential wires.
Farber Alex, Katz Boris
doaj   +1 more source

Optimization of Train Operation Planning with Full-Length and Short-Turn Routes of Virtual Coupling Trains

Applied Sciences, 2022
Virtual coupling uses wireless communication instead of mechanical coupling to ensure that trains are easily reconnected or disconnected. This technology can shorten the interval time between trains, give full play to the carrying capacity of lines, and ...
Xu Zhou, Fang Lu, Liyu Wang
doaj   +1 more source

Small coupling length with a low confinement loss dual-core liquid infiltrated photonic crystal fiber coupler

OSA Continuum, 2018
In this paper, a dual-core liquid filled photonic crystal fiber coupler (PCFC) with rectangular (RPCFC) and hexagonal (HPCFC) geometry is presented from the 1200 to 1800 nm wavelength range. In the proposed design, super flint (SF10) glass is used as the
M. M. Hossain, Md. Bellal Hossain, Md. Ziaul Amin   +2 more
semanticscholar   +1 more source

Silicon photonic bandpass filter based on apodized subwavelength grating with high suppression ratio and short coupling length.

Optics Express, 2017
A compact silicon bandpass filter with high sidelobe suppression is proposed and experimentally demonstrated using an apodized subwavelength grating (SWG) coupler.
Boyu Liu, Yong Zhang, Yu He, Xinhong Jiang, Jizong Peng, Ciyuan Qiu, Yikai Su   +6 more
semanticscholar   +1 more source