Results 21 to 30 of about 927 (144)

Stable and Tunable Single-Longitudinal-Mode Erbium-Doped Fiber Triple-Ring Laser With Power-Equalized Output

IEEE Photonics Journal, 2016
In this demonstration, we propose and investigate a stable and tunable single-longitudinal-mode (SLM) erbium-doped fiber (EDF) ring laser structure. Here, in order to achieve the SLM output, the “eye-type” triple-ring scheme is designed in ...
Chien-Hung Yeh, Jhih-Yu Chen, Hone-Zhang Chen, Jing-Heng Chen, Chi-Wai Chow   +4 more
doaj   +1 more source

High-energy single-longitudinal-mode mid-infrared optical parametric amplifier seeded with sheet optical parametric oscillator

AIP Advances, 2021
Mid-infrared (MIR) radiation is essential for remote gas sensing, ranging, and lidar applications, where high pulse energy and narrow linewidth are the keys to the high sensitivity over long distance.
Xiaohan Wang, Kunpeng Jia, Hongquan Yao, Jun Zhou, Xinjie Lv, Gang Zhao, Zhenda Xie, Shining Zhu   +7 more
doaj   +1 more source

High Compact, High Quality Single Longitudinal Mode Hundred Picoseconds Laser Based on Stimulated Brillouin Scattering Pulse Compression

Applied Sciences, 2016
A high beam quality hundred picoseconds single-longitudinal-mode (SLM) laser is demonstrated based on stimulated Brillouin scattering (SBS) pulse compression and aberration compensation.
Zhenxu Bai, Yulei Wang, Zhiwei Lu, Hang Yuan, Zhenxing Zheng, Sensen Li, Yi Chen, Zhaohong Liu, Can Cui, Hongli Wang, Rui Liu   +10 more
doaj   +1 more source

A Selectable Single-Mode Erbium Fiber Laser With Mach-Zehnder Interferometer and Rayleigh Injection Scheme

IEEE Photonics Journal, 2022
In the paper, a hybrid Mach-Zehnder interferometer (MZI) and Rayleigh backscattering (RB) injection is designed and applied in the erbium-doped fiber (EDF) ring laser configuration.
Chien-Hung Yeh, Li-Hung Liu, Han-Shin Ko, Yi-Ting Lai, Chi-Wai Chow   +4 more
doaj   +1 more source

Five-Wavelength-Switchable Single-Longitudinal-Mode Thulium-Doped Fiber Laser Based on a Passive Cascaded Triple-Ring Cavity Filter

IEEE Photonics Journal, 2022
A five-wavelength-switchable thulium-doped fiber laser with a fiber Bragg grating (FBG)-based five-channel transmitting Fabry-Pérot (F-P) filter and a multi-coupler based triple-ring cavity (CTRC) filter, is experimentally proposed.
Dan Cheng, Fengping Yan, Ting Feng, Wenguo Han, Luna Zhang, Qi Qin, Ting Li, Zhuoya Bai, Dandan Yang, Ying Guo, Wei Wang   +10 more
doaj   +1 more source

Measuring the Hall Effect in Hysteretic Materials

Advanced Materials, EarlyView.
The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya, Anthony Voyemant, Sudipta Chatterjee, Scott B. Lee, Grigorii Skorupskii, Connor J. Pollak, Leslie M. Schoop   +6 more
wiley   +1 more source

Stable Single-Longitudinal-Mode Erbium Fiber Ring Laser Utilizing Self-Injection and Saturable Absorber

IEEE Photonics Journal, 2017
In this work, we demonstrate a wavelength-tunable erbium-doped fiber (EDF) ring laser with stable single-longitudinal-mode (SLM) output. Here using the self-injection method and unpumped EDF-based saturable absorber can suppress other densely side-mode ...
Chien-Hung Yeh, Tzu-Jung Huang, Zi-Qing Yang, Chi-Wai Chow, Jing-Heng Chen   +4 more
doaj   +1 more source

Rotating Fluorescent Nanodiamond Assemblies With Focused Laguerre–Gaussian Beams

Advanced Optical Materials, EarlyView.
Self‐assembled fluorescent nanodiamond clusters are optically trapped and driven into controlled two‐dimensional rotation with Laguerre–Gaussian beams. With localized optical excitation, optically detected magnetic resonance spectra are collected at defined points along the orbit in a uniform external magnetic field.
Adam Stewart, Anthony J. El‐Helou, Ying Zhu, David McGloin, David A. Simpson, Peter J. Reece   +5 more
wiley   +1 more source

A Novel Laser Mode Identification Method Based on Wavemeter Interference Fringe and Machine Learning

Applied Sciences
In many laser application scenarios, concentrated optical energy, high coherence, and narrow spectral linewidth are critical optical characteristics that ensure the excellent performance of lasers.
Fan Yang, Yong Lin, Qi’an Wang, Wei Tan, Weiming Xu, Pengpeng Yan, Hongbo Zheng, Luning Li, Buhua Tu   +8 more
doaj   +1 more source

Friend, Not Foe: Lowered Tissue Reactivity to Long‐Term Polyimide Implants

Advanced Science, EarlyView.
The choice of optimal neural probe designs remains a major challenge in the field of neurotechnology. This study investigated the biocompatibility of several probe variations, including material, thickness, width, and implantation strategy. It highlights the clear advantage of soft polyimide probes over stiff silicon probes for better device ...
Corinne Orlemann, Laura M. De Santis, Paul Neering, Christian Boehler, Kirti Sharma, Arno Aarts, Tobias Holzhammer, Rik J. J. van Daal, Patrick Ruther, Maria Asplund, Roxana N. Kooijmans, Pieter R. Roelfsema   +11 more
wiley   +1 more source