Results 31 to 40 of about 19,656,779 (288)

A 20 W, Less-Than-1-kHz Linewidth Linearly Polarized All-Fiber Laser

Applied Sciences, 2018
We report a continuous-wave high-output power and narrow-linewidth all-fiber laser at 1550 nm with the master oscillator power amplifier (MOPA) configuration. An all-fiber distributed feedback seed laser was boosted by three cascaded fiber amplifiers. In
Mingyuan Xue, Cunxiao Gao, Linquan Niu, Shaolan Zhu, Chuandong Sun, Jian Zhang, Haodong He   +6 more
doaj   +1 more source

53.3 W Visible-Waveband Extra High Power Supercontinuum All-Fiber Laser

IEEE Photonics Journal, 2016
A visible-waveband extra high power supercontinuum (SC) all-fiber laser is demonstrated. The laser structure includes a seed laser, master power amplifier, and the SC generation system, which usually adopts photonic crystal fiber (PCF) with small mode ...
Chang Sun, Tingwu Ge, Siyuan Li, Na An, Kang Cao, Zhiyong Wang   +5 more
doaj   +1 more source

Multi-kilowatt single-mode ytterbium-doped large-core fiber laser

, 2009
We have demonstrated a highly efficient cladding-pumped ytterbium-doped fiber laser, generating >2.1 kW of continuous-wave output power at 1.1 µm with 74% slope efficiency with respect to launched pump power.
Chung, Seung-Hwan, Nilsson, Johan, Boyland, Alexander J., Sahu, Jayanta K., Payne, David N., Jeong, Yoonchan   +5 more
core   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

321W average power, 1GHz, 20ps 1060nm pulsed fiber MOPA source [PDF]

, 2005
Pulses from a gain-switched laser diode were amplified in a fiber MOPA system to produce in excess of 320W of average power in 20ps pulses at 1GHz repetition rate at ...
Jeong, Y., Hickey, L.M.B., Nilsson, J., Dupriez, P., Ibsen, M., Piper, A., Richardson, D.J., Malinowski, A., Sahu, J.K., Zervas, M.N.   +9 more
core   +2 more sources

Development of a high power, quasi-single-mode fiber laser for drilling holes on a thin metal plate at distance of 500 m from laser head

Materials Research Express
We present the development of a high-power quasi-single-mode fiber laser system with an output of approximately 1.5 kW continuous-wave and M ^2  
Tuan Banh Quoc, Dat Hoang Luu, Thien Cao Khac, Long Ngo Hai, Hoang Do Viet, Binh Le Van, Nhan Hoang Ngoc   +6 more
doaj   +1 more source

119-W Monolithic Single-Mode 1173-nm Raman Fiber Laser

IEEE Photonics Journal, 2013
We report a high-power high-efficiency single-mode all-fiber Raman fiber laser (RFL) operating at 1173 nm. With the core pumped by a 144-W 1120-nm Yb-doped fiber laser, an output power of 119 W at a wavelength of 1173 nm was obtained, corresponding to an
Hanwei Zhang, Hu Xiao, Pu Zhou, Xiaolin Wang, Xiaojun Xu   +4 more
doaj   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

High-power fiber lasers: new developments [PDF]

SPIE Proceedings, 2003
We assess different power limits of cladding-pumped fiber lasers. Despite recent advances in pump sources, these are still primarily limited by available pump power. We find that it should be possible to reach output powers beyond 1 kW in single-mode ytterbium doped fiber lasers.
Nilsson, Johan, Sahu, Jayanta K., Jeong, Yoonchan, Clarkson, W.A., Selvas, R., Grudinin, Anatoly B., Alam, Shaif-ul   +6 more
openaire   +1 more source

Fiber design for high-power low-cost Yb:Al-doped fiber laser operating at 980nm [PDF]

, 2007
We investigated an Yb:Al-doped depressed-clad hollow optical fiber (DCHOF) for cladding-pumped 980nm laser operation. With a careful design, the nonzero fundamental-mode cutoff characteristics of a DCHOF allows the competing 1030-1060nm emission to be ...
Kim, J., Nilsson, J., Soh, D.B.S., Richardson, D.J., Sahu, J.K.   +4 more
core   +1 more source