251 fs pulse generation with a Nd3+-doped Ca3Gd2(BO3)4 disordered crystal

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44137-44141 ◽  
Author(s):  
Zhongben Pan ◽  
Jie Ma ◽  
Honghao Xu ◽  
Dingyuan Tang ◽  
Huaqiang Cai ◽  
...  
Keyword(s):  
Pulse Generation ◽  
Autocorrelation Trace ◽  
Disordered Crystal

Autocorrelation trace and spectrum of the mode-locked pulses.

378 fs pulse generation with Nd3+:SrLaGa3O7(Nd:SLG) disordered crystal

2013 ◽  
Vol 10 (10) ◽  
pp. 105815 ◽  
Author(s):  
A Agnesi ◽  
F Pirzio ◽  
L Tartara ◽  
E Ugolotti ◽  
H Zhang ◽  
...  
Keyword(s):  
Pulse Generation ◽  
Disordered Crystal

Subpicosecond pulse generation from a Nd:CLNGG disordered crystal laser

2008 ◽  
Vol 34 (1) ◽  
pp. 103 ◽  
Author(s):  
G. Q. Xie ◽  
D. Y. Tang ◽  
W. D. Tan ◽  
H. Luo ◽  
H. J. Zhang ◽  
...  
Keyword(s):  
Pulse Generation ◽  
Crystal Laser ◽  
Disordered Crystal

Femtosecond pulse generation with an a-cut Nd:CaYAlO_4 disordered crystal

2016 ◽  
Vol 55 (27) ◽  
pp. 7659 ◽  
Author(s):  
Shan-De Liu ◽  
Lu-Lu Dong ◽  
Yan Xu ◽  
Xiao Zhang ◽  
Ting-Qi Ren ◽  
...  
Keyword(s):  
Femtosecond Pulse ◽  
Pulse Generation ◽  
Disordered Crystal

scholarly journals Few-layer bismuthene for 1-μm ultrafast laser applications

2019 ◽  
Author(s):  
Tianci Feng ◽  
Xiaohui Li ◽  
Tong Chai ◽  
Penglai Guo ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Pulse Generation ◽  
Ultrafast Laser ◽  
Fiber Structure ◽  
Autocorrelation Trace ◽  
Laser Applications ◽  
Quantum Properties ◽  
Narrow Bandgap ◽  
Pulsed Fiber Laser ◽  
Ultrafast Photonics ◽  
Ultrafast Pulse Generation

Bismuthene, as a new two-dimensional (2D) material made up of diazo metal elements, has drawn massive attention for its unique electronic, mechanical, and quantum properties. However, the nonlinear optical properties of bismuthene in 1-µm region, especially their applications for ultrafast photonics and internal ultrashort pulse dynamics, has seldom been explored yet. In this work, we investigate the few-layer bismuthene characterizations and apply it as a saturable absorber (SA) in a 1-μm ultrafast pulse generation. Thanks to the narrow bandgap of bismuthene and tapered fiber structure, A special noise like pulse has been obtained. The dynamics is also quite different from previous observed pulses, whose intensity ratio of coherent peak and envelope components is of around 5:4 from the autocorrelation trace. It’s demonstrated that the abnormal noise-like pulses contain more uniform-intensity sub pulses. This proposed pulsed fiber laser based on bismuthene SA source is well suitable for some applications such as material processing, optical logics etc.

Femtosecond Pulse Generation with the Disordered Crystal Nd3+:SrLaGa3O7

2013 ◽  
Author(s):  
A. Agnesi ◽  
F. Pirzio ◽  
L. Tartara ◽  
E. Ugolotti ◽  
H. Zhang ◽  
...  
Keyword(s):  
Femtosecond Pulse ◽  
Pulse Generation ◽  
Disordered Crystal

Pulse Generation and Propagation in Optical Fibers: Experiments and Simulation

1998 ◽  
Author(s):  
Joseph W. Haus ◽  
Walter Kaechele ◽  
Gary Shaulov
Keyword(s):  
Optical Fibers ◽  
Pulse Generation

A Novel Two-phase Soft Starter Used for Three-phase Asynchronous Motors

2020 ◽  
Vol 13 (8) ◽  
pp. 1175-1182
Author(s):  
Jingwen Chen ◽  
Hongshe Dang
Keyword(s):  
Pulse Generation ◽  
Power Module ◽  
Two Phase ◽  
Power Semiconductor ◽  
Starting Current ◽  
Semiconductor Switches ◽  
Soft Starter ◽  
Three Phase ◽  
And Control ◽  
Driving Circuit

Background: Traditional thyristor-based three-phase soft starters of induction motor often suffer from high starting current and heavy harmonics. Moreover, both the trigger pulse generation and driving circuit design are usually complicated. Methods: To address these issues, we propose a novel soft starter structure using fully controlled IGBTs in this paper. Compared to approaches of traditional design, this structure only uses twophase as the input, and each phase is controlled by a power module that is composed of one IGBT and four diodes. Results: Consequently, both driving circuit and control design are greatly simplified due to the requirement of fewer controlled power semiconductor switches, which leads to the reduction of the total cost. Conclusion: Both Matlab/Simulink simulation results and experimental results on a prototype demonstrate that the proposed soft starter can achieve better performances than traditional thyristorbased soft starters for Starting Current (RMS) and harmonics.

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