Graphene absorber on an SOI chip for active and passive mode locking of lasers [PDF]
Scientific ReportsWe demonstrate both passive and active mode-locking of fiber lasers using a graphene-based absorber integrated on a silicon photonics platform manufactured using a wafer-scale CMOS process.
Tom Reep +8 more
doaj +2 more sources
Tunable and Passively Mode-Locking Nd0.01:Gd0.89La0.1NbO4 Picosecond Laser [PDF]
Molecules, 2021 A high-quality Nd0.01:Gd0.89La0.1NbO4 (Nd:GLNO) crystal is grown by the Czochralski method, demonstrating wide absorption and fluorescence spectra and advantage for producing ultrafast laser pulses.
Shande Liu +10 more
doaj +2 more sources
Dynamic gain driven mode-locking in GHz fiber laser [PDF]
Light: Science & ApplicationsUltrafast lasers have become powerful tools in various fields, and increasing their fundamental repetition rates to the gigahertz (GHz) level holds great potential for frontier scientific and industrial applications.
Xuewen Chen +11 more
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Stable coherent mode-locking based on $$\pi$$ π pulse formation in single-section lasers [PDF]
Scientific Reports, 2021 Here we consider coherent mode-locking (CML) regimes in single-section cavity lasers, taking place for pulse durations less than atomic population and phase relaxation times, which arise due to coherent Rabi oscillations of the atomic inversion ...
Rostislav Arkhipov +4 more
doaj +2 more sources
Robust mode-locking in all-fiber ultrafast laser by nanocavity of two-dimensional heterostructure [PDF]
Light: Science & ApplicationsThe fiber-based saturable absorber (SA) that enables mode-locking within a ring cavity serves as the core component of the ultrafast all-fiber lasers.
Jiahui Shao +11 more
doaj +2 more sources
Understanding low-threshold mode-locking at multi-GHz repetition rate [PDF]
Light: Science & ApplicationsContinuous-wave mode-locking at multi-GHz repetition rates is achieved in an ultrashort laser cavity at critical pulse energies 100 times lower than predicted by conventional theory.
Wenbin He +2 more
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Quasi-Distributed Active-Mode-Locking Laser Interrogation with Multiple Partially Reflecting Segment Sensors [PDF]
Sensors, 2018 A new type of quasi-distributed sensor system is implemented using an active mode locking (AML) laser cavity with multiple partially reflecting segments.
Chang Hyun Park +4 more
doaj +2 more sources
Transport of a colloidal particle driven across a temporally oscillating optical potential energy landscape [PDF]
New Journal of Physics, 2019 A colloidal particle is driven across a temporally oscillating one-dimensional optical potential energy landscape and its particle motion is analysed. Different modes of dynamic mode locking are observed and are confirmed with the use of phase portraits.
Joshua L Abbott +3 more
doaj +3 more sources
Research Progress of Passively Mode-Locked Fiber Lasers Based on Saturable Absorbers [PDF]
NanomaterialsUltrashort fiber lasers are one of the current research hotspots in the field of lasers. They have the advantages of compact structure and high beam quality.
Jiayi Xie +4 more
doaj +2 more sources
Mode-locking via dissipative Faraday instability [PDF]
Nature Communications, 2016 Dissipative Faraday instability by periodic zig-zag modulation of spectral losses can lead to pattern formation in variety of systems. Here, the authors employ this nonlinear instability as a technique to achieve high-order harmonic mode-locking in a ...
Nikita Tarasov +4 more
doaj +2 more sources