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
Iteratively seeded mode-locking. [PDF]
Opt Express, 2017 Ultrashort pulsed mode-locked lasers enable research at new time-scales and revolutionary technologies from bioimaging to materials processing. In general, the performance of these lasers is determined by the degree to which the pulses of a particular resonator can be scaled in energy and pulse duration before destabilizing.
Bucklew VG +3 more
europepmc +6 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
doaj +2 more sources
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
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
doaj +2 more sources
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
2.4 GHz CMOS Power Amplifier with Mode-Locking Structure to Enhance Gain [PDF]
The Scientific World Journal, 2014 We propose a mode-locking method optimized for the cascode structure of an RF CMOS power amplifier. To maximize the advantage of the typical mode-locking method in the cascode structure, the input of the cross-coupled transistor is modified from that of ...
Changhyun Lee, Changkun Park
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
Advancements in ultrafast photonics: confluence of nonlinear optics and intelligent strategies [PDF]
Light: Science & ApplicationsAutomatic mode-locking techniques, the integration of intelligent technologies with nonlinear optics offers the promise of on-demand intelligent control, potentially overcoming the inherent limitations of traditional ultrafast pulse generation that have ...
Qing Wu +6 more
doaj +2 more sources