Results 81 to 90 of about 240,134 (346)

AlGaInAs/InP Based Five & Three Quantum Wells Mode Locked Laser Diodes: A Comparative Study

open access: yesElektronika ir Elektrotechnika, 2020
Comparison of performance of semiconductor mode-locked laser diodes fabricated using AlGaInAs/InP material containing 5 and 3 quantum wells (QWs) inside the active region is reported.
Jehan Akbar   +3 more
doaj   +1 more source

Mode-locked silicon evanescent lasers

open access: yesOptics Express, 2007
We demonstrate electrically pumped lasers on silicon that produce pulses at repetition rates up to 40 GHz. The mode locked lasers generate 4 ps pulses with low jitter and extinction ratios above 18 dB, making them suitable for data and telecommunication transmitters and for clock generation and distribution.
Brian R, Koch   +3 more
openaire   +2 more sources

Photonic crystals as functional mirrors for semiconductor lasers [PDF]

open access: yes, 2008
In recent years, interest has grown in the research fields of semiconductor lasers and photonic crystals. This thesis looks at integrating photonic crystals into existing semiconductor laser technology to act as functional laser mirrors.
Moore, Stephen A.
core  

Surprising Water Slipping Performance on Highly Hydrophilic PEG‐Derived Monolayer‐Covered Surfaces: Preparation, Mechanism, and Application

open access: yesAdvanced Functional Materials, EarlyView.
Highly hydrophilic surfaces (water contact angle, ≈17.7°) exhibiting surprising water slipping performance (sliding angle, ≈7.3°) are successfully prepared via simple chemisorption of polyethylene glycol (PEG) organosilane and subsequent alkali‐treatment.
Hyeonjin Kim   +5 more
wiley   +1 more source

Effective Removal of Gordon–Haus Jitter in Mode-Locked Fiber Lasers

open access: yesIEEE Photonics Journal, 2018
We demonstrate the effective removal of Gordon–Haus (GH) jitter in mode-locked fiber lasers based on the narrow bandpass filtering, verified from large positive dispersion to large negative dispersion.
Peng Qin   +3 more
doaj   +1 more source

1/1.5 μm Synchronized Dual-Band Mode-Locked Fiber Laser

open access: yesIEEE Photonics Journal, 2021
A 1/1.5 μm dual-band mode-locked fiber laser is experimentally demonstrated. The laser is based upon an architecture in which the 1 μm and the 1.5 μm signals are generated in independent cavities that share the identical ...
Chunyu Guo   +7 more
doaj   +1 more source

Mode Locking in a Free-Electron Laser Amplifier [PDF]

open access: yesPhysical Review Letters, 2008
Accepted for publication in Physical Review ...
Thompson, N R, McNeil, B W J
openaire   +5 more sources

Real-time observation of dissipative soliton formation in nonlinear polarization rotation mode-locked fibre lasers

open access: yesCommunications Physics, 2018
Formation of coherent structures and patterns from unstable uniform state or noise is a fundamental physical phenomenon that occurs in various areas of science ranging from biology to astrophysics.
Junsong Peng   +6 more
semanticscholar   +1 more source

Interband cascade lasers for the mid-infrared spectral region [PDF]

open access: yes, 2014
Financial support of this work by the German Ministry of Education and Research (FKZ: 13N12440) and by the European Commission in the framework of the FP7 project 'WideLase’ (grant no.
Dallner, M.   +7 more
core   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

open access: yesAdvanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg   +5 more
wiley   +1 more source

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