Results 41 to 50 of about 2,250,517 (282)

Study of high power CBC fiber laser systems with non-equal splitting ratio beam-splitters

Results in Optics, 2023
High power coherent beam combination (CBC) with non-equal splitting ratio beam splitters (BS) is studied. A BS-based two-channel CBC laser system has been built, and experiments with 50:50 BS and 30:70 BS has been carried.
Yuefang Yan, Rumao Tao, Haokun Li, Chun Zhang, Qiuhui Chu, Min Li, Jianjun Wang, Wenhui Huang, Feng Jing   +8 more
doaj   +1 more source

Dynamic focus shaping with mixed-aperture coherent beam combining

, 2021
A novel concept for dynamic focus shaping based on highly efficient coherent beam combining with microlens arrays (MLA) as combining element is presented.
Aleksander Budnicki (9757301), Daniel Flamm (3942608), Andreas Heimes (9757295), Florian Jansen (3137055), Maike Prossotowicz (9610817), Hans-Jürgen Otto (3957590), Alexander Killi (3970811), Uwe Morgner (3970814)   +7 more
core   +1 more source

Extending the Photon Energy Coverage of a Seeded Free-Electron Laser via Reverse Taper Enhanced Harmonic Cascade

Photonics, 2021
External seeded free-electron lasers (FELs) hold promising prospects for producing intense coherent radiation at high harmonics of a conventional laser.
Kaiqing Zhang, Tao Liu, Zheng Qi, Xiaoxi Fu, Chao Feng, Haixiao Deng, Bo Liu   +6 more
doaj   +1 more source

Multi-plane light conversion coherent beam combining

High Power Laser Science and Engineering
Multi-plane light conversion (MPLC) is a versatile technique that enables arbitrary manipulation of optical fields, and is numerically investigated as a novel avenue for coherent beam combining (CBC) applications.
Hongbing Zhou, Yuefang Yan, Chenxu Liu, Xi Feng, Yu Qin, Min Li, Rumao Tao, Honghuan Lin, Zhitao Peng, Jianjun Wang, Lixin Yan, Feng Jing   +11 more
doaj   +1 more source

Toward Practical Digital Phase Alignment for Coherent Beam Combining in Multi-Aperture Free Space Coherent Optical Receivers

IEEE Access, 2020
In free space optical communication systems, multi-aperture coherent optical receivers based on digital coherent beam combining (D-CBC) technique can provide exceptionally high sensitivity and are more robust to the atmosphere turbulence compared with ...
Chenjie Rao, Sheng Cui, Yicong Tu, Keji Zhou, Deming Liu   +4 more
doaj   +1 more source

Coherent beam combining of high power tapered (poster)

, 2017
International audienceWe describe the coherent beam combining of three high-power tapered laser amplifiers seeded by a DFB laser at λ = 976 nm, and demonstrate a combined power of 12.9 W in a close to diffraction-limit beam at a combining efficiency of >
Moron, Frédéric, Blume, G, M., Winterfeldt, Decker, J, Crump, Paul, Hanna, Marc, Georges, Patrick, Albrodt, Philipp, Lucas-Leclin, Gaëlle   +8 more
core   +5 more sources

Coherent combining of large-aperture high-energy Nd:glass laser amplifiers

High Power Laser Science and Engineering
We present coherent beam combining of nanosecond pulses with 20-J energy and large beams using a Sagnac interferometer geometry based on Nd:glass rod-type amplifiers.
Pierre Lebegue, Joanna De Sousa, Cyril Rapenau, Doina Badarau, Jordan Andrieu, Patrick Audebert, Frédéric Druon, Dimitrios Papadopoulos   +7 more
doaj   +1 more source

Machine learning phase control of filled-aperture coherent beam combining: principle and numerical demonstration

High Power Laser Science and Engineering
Machine learning has already shown promising potential in tiled-aperture coherent beam combining (CBC) to achieve versatile advanced applications. By sampling the spatially separated laser array before the combiner and detuning the optical path delays ...
Hongbing Zhou, Rumao Tao, Xi Feng, Haoyu Zhang, Min Li, Xiong Xin, Yuyang Peng, Honghuan Lin, Jianjun Wang, Lixin Yan, Feng Jing   +10 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Volume Bragg grating external cavities for the passive phase locking of high-brightness diode laser arrays : theoretical and experimental study [PDF]

, 2011
We describe the theoretical modeling of the external-cavity operation of a phase-locked array of diode lasers in two configurations, the self-imaging cavity based on the Talbot effect and the angular-filtering cavity. Complex filtering functions, such as
Jun Lim, Larkins, Eric, Gaëlle Lucas-Leclin, Jensen, Ole Bjarlin, Thestrup, Birgitte, Thestrup Nielsen, Birgitte, Birgitte Thestrup, Deepak Vijayakumar, Sujecki, Slawomir, Georges, Patrick, Eric Larkins, David Pabœuf, Ole Bjarlin Jensen, Paboeuf, David, Patrick Georges, Slawomir Sujecki, Thestrup, Birgit, Lim, Jun, Vijayakumar, Deepak, Lucas-Leclin, Gaëlle   +19 more
core   +4 more sources