Results 21 to 30 of about 1,460,974 (246)

Ultrashort-pulse generation from quantum-dot semiconductor diode lasers [PDF]

, 2008
In this thesis, novel regimes of mode locking in quantum dot semiconductor laser diodes have been investigated by exploiting the unique features offered by quantum dots.
Cataluna, Maria Ana
core   +2 more sources

Comparison of cutting and coagulation properties of 1.56 and 1.94 µm fiber lasers and a 0.98 µm semiconductor laser

Бюллетень сибирской медицины, 2022
Aim of the study was to compare the cutting and coagulation properties of 1.56 and 1.94 μm fiber lasers with those of a 0.98 μm semiconductor laser.Materials and methods. A comparative study of the biological effects of 1.56 and 1.94 µm lasers and a 0.98
M. A. Ryabova, M. Yu. Ulupov, N. A. Shumilova, G. V. Portnov, E. K. Tikhomirova, M. E. Malkova   +5 more
doaj   +1 more source

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
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Laser Radiation Induces Growth and Lipid Accumulation in the Seawater Microalga Chlorella pacifica

Energies, 2017
The impacts of laser radiation (Nd: YAG laser, 1064 nm at 800 mW, He–Ne laser 808 nm at 6 W, semiconductor laser 632.8 nm at 40 mW) on growth and lipid accumulation of Chlorella pacifica were investigated in this study.
Haonan Zhang, Zhengquan Gao, Zhe Li, Huanmin Du, Bin Lin, Meng Cui, Yonghao Yin, Fengming Lei, Chunyu Yu, Chunxiao Meng   +9 more
doaj   +1 more source

Dynamics Simulation and Experimental Investigation of Q-Switching in a Self-Mode-Locked Semiconductor Disk Laser

IEEE Photonics Journal, 2022
Q-switching in a mode-locked laser not only makes the amplitude of every single output pulse unequal, but also limits the time width and peak power of output pulses.
Peng Zhang, Renjiang Zhu, Tao Wang, Yadong Wu, Cunzhu Tong, Lijie Wang, Yanrong Song   +6 more
doaj   +1 more source

Structural Design and Experimental Investigation of a 1.65 µm Tapered Semiconductor Laser with InGaAlAs MQWs (On InP)

Photonics
This paper presents the design and fabrication of a 1.65 μm tapered semiconductor laser based on an InGaAlAs multiple quantum well structure (grown) on InP.
Yuan Feng, Weichen Geng, Jinghang Yang, Zhipeng Wei, Jilong Tang, Cong Zhang, Huimin Jia, Lijun Guo   +7 more
doaj   +1 more source

Research Status of Circuit Design for Semiconductor Lasers [PDF]

MATEC Web of Conferences
To study the current status of advanced semiconductor lasers, this paper reviews circuits of temperature-tuned semiconductor lasers, compact temperature control circuits, and high-power semiconductor laser circuits.
Wu Yibing
doaj   +1 more source

Special Issue “Semiconductor Laser Dynamics: Fundamentals and Applications”

Photonics, 2020
With the advent of integrated photonics, a crucial role is played by semiconductor diode lasers (SDLs) as coherent light sources. Old paradigms of semiconductor laser dynamics, like optical injection, external feedback and the coupling of lasers ...
Daan Lenstra
doaj   +1 more source

Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser [PDF]

, 2006
We report the operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser. The laser delivers 1 W at 855 nm and is pumped with a cost-effective fiber-coupled laser diode emitting at 806 nm.
Ferguson, Allister I., McGinily, Stephen, Schmid, Marc, Ackemann, Thorsten, Zhang, Wei, Riis, Erling   +5 more
core   +4 more sources

Finite-time Synchronization Transmission Technology of Signal based on Semiconductor Laser

Guangtongxin yanjiu, 2021
A new method is proposed to solve the problem of finite-time synchronization transmission of signal in the current modulated semiconductor laser. Firstly, the characteristics of current modulated semiconductor laser are analyzed theoretically.
ZHAO Li-na, WEI Qing-tao, Lü Ling
doaj   +3 more sources