Results 101 to 110 of about 2,250,517 (282)

Coherent beam combining of two femtosecond fiber chirped-pulse amplifiers

open access: yes, 2011
International audienceWe demonstrate coherent beam combining of two femtosecond fiber chirped-pulse amplifiers seeded by a common oscillator. Using a feedback loop based on an electro-optic phase modulator, an average power of 7:2W before compression is ...
Druon, Frédéric   +8 more
core   +3 more sources

Experimental Demonstration of Coherent Combining With Tip/Tilt Control Based on Adaptive Space-to-Fiber Laser Beam Coupling

open access: yesIEEE Photonics Journal, 2017
A novel approach of tip/tilt control through optimizing laser beam coupling efficiencies from space to polarization-maintaining-fibers with stochastic parallel gradient descent (SPGD) algorithm for coherent beam combining (CBC) applications is ...
Feng Li   +5 more
doaj   +1 more source

Coherent beam combining of 60 femtosecond fiber amplifiers

open access: yes, 2020
International audienceWe report on the first coherent beam combining of 60 fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique.
Durand, Eric   +9 more
core  

High-power coherent beam combining of two photonic crystal fiber lasers

open access: yes, 2008
Coherent beam combining of two large mode area photonic crystal fiber (LMA PCF) lasers is studied experimentally by using a self-imaging technique.
Zhao, Wei   +5 more
core   +1 more source

Coherent polarization shift keying modulated free space optical links over a Gamma-Gamma turbulence channel [PDF]

open access: yes, 2011
Problem statement: The optical signal propagating through the Free Space Optical (FSO) channel suffers from irradiance and phase fluctuations caused by the atmospheric turbulence, which results in Bit Error Rate (BER) performance degradation ...
Ghassemlooy, Zabih   +7 more
core   +1 more source

Upcycling Keratin‐Based Textile Waste Into High‐Performance Hybrid Fibers Via Tuning the Interfacial Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai   +6 more
wiley   +1 more source

Recent progress of coherent beam combining Kumgang Laser (0.4J@10kHz/10ns) [PDF]

open access: yes, 2016
A coherent beam combining is the most promising technique to achieve a high output energy and a high repetition rate laser system with a good beam quality [1].
Kim, Jom Sool   +8 more
core   +1 more source

Coherent Beam Combining Through Mutual Injection Locking of Individual Lasers

open access: yes, 2010
Beam-combining is a technology for generation of a single high power beam from individual laser modules. Coherent beam-combining has the advantage that the combined beam has a smaller divergence angle and an increased brightness at the lasing wavelength.
Wang, Qiang
core   +1 more source

Coherent beam combining of high power quasi continuous wave tapered amplifiers [PDF]

open access: yes, 2019
International audienceWe demonstrate coherent beam combining of four high brightness tapered amplifiers in pulsed, quasi continuous wave (QCW) operation, seeded by a 976 nm laser diode.
Moron, F.   +7 more
core   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto   +4 more
wiley   +1 more source

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