Results 1 to 10 of about 34,535 (289)

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, Renninger WH, Edwards PS, Liu Z.   +3 more
europepmc   +4 more sources

Graphene absorber on an SOI chip for active and passive mode locking of lasers. [PDF]

Sci Rep
We 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.
Reep T, Wu CH, Yudistira D, Brems S, Asselberghs I, Pantouvaki M, Van Campenhout J, Van Thourhout D, Kuyken B.   +8 more
europepmc   +2 more sources

Tunable and Passively Mode-Locking Nd_0.01:Gd_0.89La_0.1NbO₄ 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.
Liu S, Zhao Y, Zhang K, Chen B, Zhang N, Li D, Zhang H, Zhang Y, Wang L, Ding S, Zhang Q.   +10 more
europepmc   +2 more sources

Quasi-Distributed Active-Mode-Locking Laser Interrogation with Multiple Partially Reflecting Segment Sensors. [PDF]

Sensors (Basel), 2018
A new type of quasi-distributed sensor system is implemented using an active mode locking (AML) laser cavity with multiple partially reflecting segments.
Park CH, Kim GH, Hong SW, Lee HD, Kim CS.   +4 more
europepmc   +2 more sources

Dynamic gain driven mode-locking in GHz fiber laser. [PDF]

Light Sci Appl
Ultrafast 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.
Chen X, Lin W, Hu X, Wang W, Liang Z, Ling L, Yang Y, Guo Y, Liu T, Chen D, Wei X, Yang Z.   +11 more
europepmc   +2 more sources

Robust mode-locking in all-fiber ultrafast laser by nanocavity of two-dimensional heterostructure. [PDF]

Light Sci Appl
The fiber-based saturable absorber (SA) that enables mode-locking within a ring cavity serves as the core component of the ultrafast all-fiber lasers.
Shao J, Yao G, Wu X, Lin K, Zhang S, Cheng X, Zhong D, Liu C, Liu C, Wang F, Liu K, Hong H.   +11 more
europepmc   +2 more sources

Stable coherent mode-locking based on [Formula: see text] pulse formation in single-section lasers. [PDF]

Sci Rep, 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 ...
Arkhipov R, Pakhomov A, Arkhipov M, Babushkin I, Rosanov N.   +4 more
europepmc   +2 more sources

Understanding low-threshold mode-locking at multi-GHz repetition rate. [PDF]

Light Sci Appl
Continuous-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.
He W, Pang M, Russell PSJ.
europepmc   +2 more sources

Active mode-locking optoelectronic oscillator

Optics Express, 2020
The optoelectronic oscillator (OEO) has been widely investigated to generate ultra-pure single-frequency microwave signals. In this study, we propose and experimentally demonstrate an active mode-locking optoelectronic oscillator (AML-OEO), which can generate broadband microwave frequency comb (MFC) signals.
Bo Yang, Zizeng Cao, Hao Chi
exaly   +3 more sources

Research Progress of Passively Mode-Locked Fiber Lasers Based on Saturable Absorbers. [PDF]

Nanomaterials (Basel)
Ultrashort 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.
Xie J, Liu T, Liu X, Wang F, Liu W.
europepmc   +2 more sources