Results 31 to 40 of about 3,383,190 (300)

All-Fiber High Efficiency Wavelength-Tunable Mode-Locked Cylindrical Vector Beam Laser

IEEE Photonics Journal, 2022
A wavelength-tunable mode-locked cylindrical vector beam (CVB) fiber laser with a dumbbell-shaped structure was proposed and demonstrated experimentally.
Yuan Lu, Peijun Yao
doaj   +1 more source

Theoretical Comparison of NPR and Hybrid Mode-Locked Soliton Thulium-Doped Fiber Lasers

IEEE Photonics Journal, 2017
The evolutions and properties of solitons in a thulium-doped fiber laser hybrid mode-locked by the coaction of nonlinear polarization rotation (NPR) and a semiconductor saturable absorber mirror (SESAM) have been numerically investigated.
Yanjia Lyu, Jianfeng Li, Yunxiao Hu, Yazhou Wang, Chen Wei, Yong Liu   +5 more
doaj   +1 more source

Graphene Mode-Locked Ultrafast Laser [PDF]

ACS Nano, 2010
Graphene is at the center of a significant research effort. Near-ballistic transport at room temperature and high mobility make it a potential material for nanoelectronics. Its electronic and mechanical properties are also ideal for micro and nanomechanical systems, thin-film transistors and transparent and conductive composites and electrodes. Here we
Sun Z, Hasan T, Torrisi F, Popa D, Privitera G, Wang F, Bonaccorso F, Basko D M, Ferrari A C   +8 more
openaire   +5 more sources

Passively mode-locked diode-pumped surface-emitting semiconductor laser

, 2000
A surface-emitting semiconductor laser has been passively mode locked in an external cavity incorporating a semiconductor saturable absorber mirror. The gain medium consists of a stack of 12 InGaAs-GaAs strained quantum wells, grown above a Bragg mirror ...
Tropper, A.C., Morier-Genoud, F., F. Morier-Genoud, J. S. Roberts, Roberts, J.S., Garnache, A., A. C. Tropper, Keller, U., Paschotta, R., A. Garnache, Oesterle, U., S. Dhanjal, U. Oesterle, Dhanjal, S., Häring, R., R. Häring, R. Paschotta, S. Hoogland, U. Keller, Hoogland, S.   +19 more
core   +1 more source

Yb-doped femtosecond lasers and their frequency doubling [PDF]

, 2009
Ultralow threshold, compact and highly efficient femtosecond lasers based on Yb³⁺-doped potassium yttrium tungstate (Yb:KYW) and Yb³⁺-doped vanadium yttrium oxide (Yb:YVO 4 ) have been demonstrated within this PhD-research project.
Sarmani, Abdul Rahman
core   +2 more sources

Ultralow Saturation Intensity Topological Insulator Saturable Absorber for Gigahertz Mode-Locked Solid-State Lasers

IEEE Photonics Journal, 2018
The successful demonstration of Q-switched and mode-locked fiber-laser operations using a topological insulator (TI) as saturable absorber (SA) has opened an application window besides TI's originally expected features. However, to date, all-solid-
Yi-Ran Wang, Wei-Heng Sung, Xian-Cui Su, Yue Zhao, Bai-Tao Zhang, Chung-Lung Wu, Guan-Bai He, Yuan-Yao Lin, Hong Liu, Jing-Liang He, Chao-Kuei Lee   +10 more
doaj   +1 more source

Graphene Actively Mode‐Locked Lasers [PDF]

Advanced Functional Materials, 2018
AbstractActively mode‐locked lasers offer varying degrees of flexibility for a wider range of applications than their passively modulated counterparts, due to their capability for electrically controlled ultrahigh repetition rate operation. Graphene based electrooptic modulators with unique advantages of broad operation bandwidth and ultrafast speed ...
Wang, Yadong, Xue, Hui, Yang, Xiaoxia, Mao, Dong, Gan, Xuetao, Ren, Zhaoyu, Zhao, Jianlin, Dai, Qing, Soboń, Grzegorz, Sotor, Jarosław, Sun, Zhipei, Bogusławski, Jakub   +12 more
openaire   +3 more sources

Highly-Stable Microwave Generation System Based on Figure-8 Mode-Locked Fiber Laser for Space Applications [PDF]

EPJ Web of Conferences
We have developed a spaceborne optical frequency comb based on figure-8 mode-locked fiber laser for highly-stable microwave generation. Our low phase noise, robust and compact mode-locked laser has passed the environment tests for space applications.
Takeuchi Yuichi, Yamada Takahiro, Tanaka Yushi, Takagi Nozomu, Musha Mitsuru   +4 more
doaj   +1 more source

A Compact Self-Injection-Locked Narrow-Linewidth Diode Laser with Narrowband Dielectric Filter

Applied Sciences, 2023
The self-injection-locked diode laser can significantly reduce the linewidth down to a sub-100 kHz level but requires optical filtering that is much narrower than the laser cavity linewidth.
Pengfei Fan, Peng Xu, Hua-Ying Liu, Minghao Shang, Zhenda Xie, Shining Zhu   +5 more
doaj   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source