Results 21 to 30 of about 4,539 (257)

Triple Coupled Ring‐Core Fiber with Dual Highly Dispersive Windows for Orbital Angular Momentum Mode

Advanced Photonics Research, 2022
Orbital angular momentum (OAM) beams, featured by the helical phase front and doughnut intensity profile, have been demonstrating great potential for various applications. Ring‐core optical fiber is also experimentally proven to be an effective waveguide
Wenpu Geng, Changjing Bao, Lin Zhang, Yuxi Fang, Yingning Wang, Zhi Wang, Weiwei Liu, Yongxiong Ren, Zhongqi Pan, Yang Yue   +9 more
doaj   +1 more source

Low-Complexity Chromatic Dispersion Equalization FIR Digital Filter for Coherent Receiver

Photonics, 2022
This paper proposes a novel and efficient low-complexity chromatic dispersion equalizer (CDE) based on finite impulse response (FIR) filter architecture for polarization-multiplexed coherent optical communication systems.
Zicheng Wu, Sida Li, Zhiping Huang, Fangqi Shen, Yongjie Zhao   +4 more
doaj   +1 more source

FIBER DISPERSION MEASUREMENTS USING MACH-ZEHNDER INTERFEROMETER

Tạp chí Khoa học
We present an efficient technique for measuring chromatic dispersion using a modified Mach-Zehnder interferometer in conjunction with with a supercontinuum light source.
Le Canh Trung
doaj   +1 more source

Theoretical Analysis of the Optical Propagation Characteristics in a Fiber-Optic Surface Plasmon Resonance Sensor

Sensors, 2013
Surface plasmon resonance (SPR) sensor is widely used for its high precision and real-time analysis. Fiber-optic SPR sensor is easy for miniaturization, so it is commonly used in the development of portable detection equipment.
Xiaolin Zheng, Ning Hu, Zhong Yang, Xiaoping Wan, Jun Yang, Linlin Liu   +5 more
doaj   +1 more source

Optoelectronic chromatic dispersion and wavelength monitoring in a photodiode

Optics Express, 2021
The optoelectronic process of light absorption and current formation in photodiodes is shown to be a significant source of optoelectronic chromatic dispersion (OED). Simple design rules are developed for fabricating a photodiode-based dispersion device that possesses large, small, zero, and either positive or negative OED.
Ziv Glasser, Pawan Kumar Dubey, Ayuushi Dutta, Egor Liokumovitch, Rita Abramov, Shmuel Sternklar   +5 more
openaire   +2 more sources

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Novel High Negative Chromatic Dispersion Photonic Crystal Fiber with Low Confinement Loss [PDF]

Journal of Electrical and Electronics Engineering, 2016
In this paper, we propose a novel dual core concentric photonic crystal fiber with high negative chromatic dispersion and low confinement loss. Finite element method with perfectly matched layers (PMLS) is used to investigate the guiding properties.
OUADAH Mohammed Chamse Eddine, CHIKH-BLED Mohammed El Kébir   +1 more
doaj  

Accurate Chromatic Dispersion Characterization of Photonic Integrated Circuits

IEEE Photonics Journal, 2012
An accurate technique to characterize chromatic dispersion and its slope versus wavelength is reported. The method is based on a heterodyne Mach-Zehnder interferometer, which is immune to thermal phase noise by using a counterpropagating reference beam ...
S. Mas, J. Matres, J. Marti, C. J. Oton
doaj   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source