Results 121 to 130 of about 17,434 (315)

Depressed clad hollow optical fiber with fundamental LP01 mode cut-off

, 2006
We propose a depressed clad hollow optical fiber with fundamental (LP01) mode cut-off suitable for high power short-wavelength, especially three-level, fiber laser operation by introducing highly wavelength dependent losses at longer wavelengths. The cut-
Codemard, C., Nilsson, J., Y. Jeong, Dupriez, P., Soh, D.B.S., Sahu, J., D.B.S. Soh, C. Codemard, Yoo, S., J. Kim, S. Yoo, Jeong, Y., Kim, J., J. Nilsson, J. K. Sahu, P. Dupriez   +15 more
core   +1 more source

56W frequency doubled source at 530 nm pumped by a single-mode single-polarization picosecond Yb³⁺-doped fiber MOPA [PDF]

, 2010
We report a frequency doubled green source at 530nm pumped based on an all-fiber, picosecond, single polarization Yb3+-doped fiber MOPA delivering 20ps pulses at user selectable repetition rates of up to 910MHz and an average output power in excess of ...
Chen, Kang Kang, Alam, Shaif U., Lin, Dejiao, Mc Bride, Roy, Hall, D.W., Price, J. H V, McBride, R., Richardson, D.J., Baker, Howard J., Richardson, David J., Baker, H.J., Malinowski, A., Hayes, John R., Alam, S.-U., Price, J.H.V., Malinowski, Andrew, Hall, Dennis, Hayes, J.R.   +17 more
core   +1 more source

Defect‐Functionalization‐Mediated Tunneling Drives Nonlinear Photoemission in Perovskites

Advanced Science, EarlyView.
This cover illustration depicts CsPbBr3 perovskite nanocrystals embedded with functionalized defect vacancies, where electrons migrate through defect‐mediated pathways and emit as lightning‐like beams. The imagery visualizes the core discovery of our work—defect‐functionalization‐mediated tunneling enabling nonlinear photoemission, where deep‐level ...
Hang Ren, Xi Zhang, Yicheng Wang, Shuai Wang, Zhi Wang, Yumeng Li, Jikai Yang, Xin Wang, Weijun Chen, Yining Mu   +9 more
wiley   +1 more source

Self-optimizing additive pulse mode-locked fiber laser: wavelength tuning and selective operation in continuous-wave or mode-locked regime

, 2018
Additive pulsed-mode mode-locked fiber lasers are known for their wide range of operating states, which can be achieved by tuning the artificial saturable absorber with built-in polarization controllers.
Manuel Ryser, Valerio Romano, Christoph Lätt, Ryser, Manuel, Christoph Bacher, Bacher, Christoph, Philippe Raisin, Heidt, Alexander, Thomas Feurer, Alexander Heidt, Feurer, Thomas, Lätt, Christoph, Raisin, Philippe, Romano, Valerio   +13 more
core   +1 more source

Hybrid radio over fiber system for generation and distribution of UWB signals [PDF]

, 2008
The authors investigate a hybrid radio over fiber system for the generation and distribution of UWB signals. This system is based on gain-switched laser, which is used to generate short optical pulses.
Barry, Liam P., A. Kaszubowska-Anandarajah, Kaszubowska-Anandarajah, Aleksandra, L.P. Barry, Perry, Philip, P. Perry   +5 more
core   +1 more source

Toward Long‐Term Reliable Human‐Machine Interaction: A Flexible, Breathable, and Self‐Powered Pressure Sensor System With Firefighting Validation

Advanced Science, EarlyView.
This work develops a breathable potentiometric self‐powered pressure sensor with good wearability, using a non‐woven fabric substrate and hydrogel electrolyte. The sensor is integrated into a five‐channel smart glove to acquire reliable hand motion signals, which are processed by a CNN for identity verification and smart vehicle control in human ...
Qilong Zhang, Zhao Yao, Jiaxu Liu, Yuxuan Hou, Zhongtao Zhang, Jingwei Xue, Leonid Chernogor, Nam Young Kim, Eun Seong Kim, Yuanyue Li, Yang Li   +10 more
wiley   +1 more source

Random Search Algorithm-Assisted Automatic Mode-Locked Fiber Lasers

Photonics
Automatic mode-locking is a crucial approach for achieving ultrashort pulses in fiber lasers. Here, a random search algorithm was developed, and an automatic mode-locked laser was constructed.
Penghui Yang, Yanrong Song, Lin Mao, Ruyue You   +3 more
doaj   +1 more source

Enhanced Stability in Zero‐Excess Li‐Metal Batteries via Prelithiated Carbon Nanofiber Interlayers

Advanced Science, EarlyView.
Carbon nanofibers carbonized at 700°C show Li metal deposition predominantly on the side facing the Cu current collector. During delithiation, Li agglomerates remain as inactive lithium on the fiber surface. This behavior can be changed by a modified n‐Buli prelithiation without a washing step, suppressing dead Li formation and therefore enabling ...
Sandro Schöner, Marius Ast, Vera Michaela Barysch, Rebecca Erkes, Jule Meier‐Merziger, Pengfei Cao, Joachim Mayer, Josef Granwehr, Fabian Jeschull, Hermann Tempel, Shicheng Yu, Rüdiger‐A. Eichel   +11 more
wiley   +1 more source

Birefringence-Induced Trains of High-Rate Pulses in a Mode-Locked Fiber Laser

IEEE Photonics Journal, 2009
The output of a mode-locked erbium-doped ring fiber laser incorporating a section of a polarization-maintaining (PM) fiber is investigated in both numerical simulations and experiments.
Avi Zadok, Jacob Sendowski, Amnon Yariv
doaj   +1 more source

PbSe Quantum Dot Doped Mode-Locked Fiber Laser. [PDF]

Materials (Basel), 2022
Wei K, Zhang L, Zhu H, Hou J, Xu Z, Yu Z.   +5 more
europepmc   +1 more source