Results 111 to 120 of about 46,573 (328)

All-Optical Actively Mode-Locked Fiber Laser at 2-μm Based on Interband Modulation

IEEE Photonics Journal, 2017
In this paper, we have achieved a high repetition rate and tunable pulse generation near ∼2 μm through an all-optical actively mode-locked fiber laser. The performances of the fiber laser have been systematically investigated through
Xu Wu, Zhichao Wu, Tianye Huang, Bingwei Chen, Kaixuan Ren, Songnian Fu   +5 more
doaj   +1 more source

Long-term Stabilization of Fiber Laser Using Phase-locking Technique with Ultra-low Phase Noise and Phase Drift

, 2014
We review the conventional phase-locking technique in the long-term stabilization of the mode-locked fiber laser and investigate the phase noise limitation of the conventional technique.
Hou, Dong, Ning, Bo, Wu, Jiutao, Zhang, Shuangyou, Zhao, Jianye   +4 more
core   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source

Material‐Induced Nuclear Deformation Controls Chromatin Architecture in Adipose Stem Cells

Advanced Science, EarlyView.
Tuning cell and cytoskeleton mechanics modulated nuclear shape and heterochromatin organization in ASCs. Distinct cytoskeletal architectures induced nuclear morphologies from oblate to prolate ellipsoids. Large elongated cells with a structured actin cap exhibited high nuclear strain, driving nuclear envelope deformation and heterochromatin ...
Carlo F. Natale, Luca Messina, Valeria Panzetta, Stefania Saporito, Costantino Menna, Maurizio Ventre, Paolo A. Netti   +6 more
wiley   +1 more source

Spatial‐Wavelength Multiplexing Error‐Controlled Photonic Analog Computing System

Advanced Science, EarlyView.
A novel photonic integrated circuit prototype implementing the concept of general‐purpose analog computing and demonstrate its capability in radio frequency applications. The chip features a multichannel architecture and performs fully optical analog computation with frequency‐domain parallel processing. An FPGA‐based error‐correction algorithm aims to
Tao Zhu, Bowen Zhu, Shicheng Zhang, Keren Li, Xianchen Wu, Yazhi Pi, Jie Yan, Daigao Chen, Bingli Guo, Xi Xiao, Lei Wang, Xiaochuan Xu, Xuwei Xue, Shanguo Huang, Zizheng Cao, Shaohua Yu   +15 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

Dispersion-managed mode-locked Tm:ZBLAN fiber lasers

Optics Express
We demonstrated a dispersion-managed 2 μm ultrafast laser based on Tm:ZBLAN fiber. By controlling intracavity net dispersion using passive fibers, we observed soliton, stretched-pulse, and dissipative-soliton mode-locked operations. In particular, the broadest output spectrum with a bandwidth at 30 dB below peak of 320 nm and a pulse duration of 61 fs ...
Hiroki Kawase, Junya Takano, Riko Noguchi, Takao Fuji   +3 more
openaire   +2 more sources

Dissipative soliton in actively mode-locked fiber laser

Optics Express, 2012
A dissipative soliton in an all-normal-dispersion actively mode-locked ytterbium-doped fiber laser is reported for the first time. Pulses with 10-ps duration and edge-to-edge bandwidth of 9 nm are generated, and then extra-cavity compressed down to 560 fs due to the large chirp. Widely wavelength tuning between 1031 and 1080 nm is achieved by adjusting
Ruixin, Wang, Yitang, Dai, Li, Yan, Jian, Wu, Kun, Xu, Yan, Li, Jintong, Lin   +6 more
openaire   +2 more sources

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

Advanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies, Emanuele Nicotra, Kefan Zhu, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Phuoc Thien Phan, Jingjing Wan, Patrick Pruscino, Hermione Truong, Jelena Rnjak‐Kovacina, Hoang‐Phuong Phan, Christopher Hayward, Nigel Hamilton Lovell, Thanh Nho Do   +14 more
wiley   +1 more source

Mode-Locked Fiber Laser Sensors with Orthogonally Polarized Pulses Circulating in the Cavity. [PDF]

Sensors (Basel), 2023
Afkhamiardakani H, Diels JC.
europepmc   +1 more source