Results 91 to 100 of about 50,260 (318)

Source misalignment in multimode polymer tapered waveguides for optical backplanes

, 2007
Polymer tapered multimode waveguides were modeled using the finite difference wide-angle beam propagation method to investigate whether tapered input waveguide couplers decreasing in width away from the waveguide entrance give improved tolerance to ...
Rashed, AM, Selviah, DR
core  

Forces on a Rayleigh particle in the cover region of a planar waveguide

, 2000
We report on the optimization of a waveguide structure for the maximization of the radiation forces exerted on a Rayleigh particle in the cover region.
Luff, B.J., Ng, L.N., Wilkinson, J.S., Zervas, M.N.   +3 more
core   +1 more source

Non‐Volatile Silicon Mach‐Zehnder Switches with 0.7 π Phase Shift Based on Graphene Heaters and Sb2Se3 Phase Change Material

Advanced Optical Materials, EarlyView.
ABSTRACT Photonic integrated circuits (PICs) can deliver unparalleled performance for future neuromorphic computing applications. Such neuromorphic PICs require a large number of tunable switches, which are typically realized with current‐controlled heaters, resulting in considerable energy consumption.
Jens Samland, Felix Hoff, Timo Veslin, Holger Lerch, Bartos Chmielak, Martin Otto, Caroline Porschatis, Bárbara Canto, Stephan Suckow, Matthias Wuttig, Max C. Lemme   +10 more
wiley   +1 more source

Optical 8-channel, 10 Gb/s MT pluggable connector alignment technology for precision coupling of laser and photodiode arrays to polymer waveguide arrays for optical board-to-board interconnects

, 2008
The paper introduces a low cost, precision alignment technique designed to be unaffected by temperature or process variations in the thickness of the PCB FR4 board, the thickness of the lower cladding between the PCB board and the waveguide core, the ...
Selviah, D.R., Milward, D., Hopkins, K., Papakonstantinou, I., David R. Selviah, Wang, K., Pitwon, R.A., Ken Hopkins, Richard A. Pitwon, Dave Milward, Ioannis Papakonstantinou, Anibal Fernández, F., Kai Wang   +12 more
core   +1 more source

Processing ultrafast optical signals in broadband telecom systems by means of cascaded quadratic nonlinearities [PDF]

, 2006
Quadratic optical nonlinearities offer several attractive features for the implementation of ultra-fast, low-noise and transparent telecom devices.
David Richardson, Gallo, Katia, Richardson, David, Richardson, David J., Prawiharjo, Jerry, Francesca Parmigiani, Paulo Almeida, Parmigiani, Francesca, Jerry Prawiharjo, Gallo, Katia,, Periklis Petropoulos, Almeida, Paulo, Katia Gallo, Petropoulos, Periklis   +13 more
core   +1 more source

Gain Characteristics of Hybrid Waveguide Amplifiers in SiN Photonics Integration with Er-Yb:Al₂O₃ Thin Film

Photonics
Integrated optical waveguide amplifiers, with their compact footprint, low power consumption, and scalability, are the basis for optical communications. The realization of high gain in such integrated devices is made more challenging by the tight optical
Ziming Dong, Guoqing Sun, Yuqing Zhao, Yaxin Wang, Lei Ding, Liqin Tang, Yigang Li   +6 more
doaj   +1 more source

SU-8 Based Waveguide for Optrodes

Proceedings, 2018
Neural probes can be equipped with light for optogenetics applications. Different approaches are used for delivering light to the tissue: an optical fiber coupled to the probe, a µLED or a waveguide integrated on the probe.
Sara Pimenta, João F. Ribeiro, Sandra B. Goncalves, Marino J. Maciel, Rosana A. Dias, João Gaspar, Reinoud F. Wolffenbuttel, José H. Correia   +7 more
doaj   +1 more source

Resonances in microstructured optical waveguides

Optics Express, 2003
We propose a simple physical model that predicts the optical properties of a class of microstructured waveguides consisting of high-index inclusions that surround a low-index core. On the basis of this model, it is found that a large regime exists where transmission minima are determined by the geometry of the individual high-index inclusions.
Natalia M, Litchinitser, Steven C, Dunn, Brian, Usner, Benjamin J, Eggleton, Thomas P, White, Ross C, McPhedran, C Martijn, de Sterke   +6 more
openaire   +2 more sources

Chip‐Integrated Metasurface‐GaAsSb Nanowire Array Photodetectors for Single‐Pixel Polarimetric Imaging

Advanced Optical Materials, EarlyView.
A 2×2 multiplexed GaAsSb nanowire photodetector array integrated with L‐shaped metasurfaces is developed for miniaturized infrared polarimetry. Leveraging non‐radiating anapole states that facilitate near‐field enhancement, the device demonstrates strong polarization selectivity at 835 nm.
Longsibo Huang, Ziyuan Li, Yitao Yang, Yang Yu, Lei Xu, Li Li, Songqin Zhang, Han Wang, Wenwu Pan, Chaohao Chen, Weiqi Jin, Wen Lei, Lorenzo Faraone, Chennupati Jagadish, Lan Fu   +14 more
wiley   +1 more source

Integrated optical and electronic interconnect printed circuit board manufacturing

, 2008
Introduction: At high bit rates copper tracks in printed circuit boards (PCBs) suffer severe loss and pulse distortion due to radiation of electromagnetic waves, dispersion and bandwidth limitations.
Selviah, D.R., Suyal, H., Milward, D., Bagshiahi, Hadi, Walker, A.C., Anibal Fernandez, F., Chappell, J., Hutt, David A., Hutt, D.A., Conway, P.P., McCarthy, A., Selviah, David R., Zakariyah, S.S., Fernández, Aníbal, Bagshiahi, H., Walker, Andy C., Papakonstantinou, I., Chappell, John, Suyal, Himanshu, McCarthy, Aongus, Conway, Paul P., Milward, Dave, Wang, K., Zakariyah, Shefiu S., Papakonstantinou, Ioannis, Fernández, F.A., Wang, Kai, Baghsiahi, H.   +27 more
core   +1 more source