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Optics Letters, 2021
An actively mode-locked optoelectronic oscillator (OEO) is proposed and demonstrated to generate chirp-free microwave pulse trains with variable repetition rates.
Zhen Zeng +7 more
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An actively mode-locked optoelectronic oscillator (OEO) is proposed and demonstrated to generate chirp-free microwave pulse trains with variable repetition rates.
Zhen Zeng +7 more
semanticscholar +1 more source
Conference on Lasers and Electro-Optics, 2020
A new mode-locking mechanism is discussed that solely relies on four-wave mixing and does not require a saturable absorber. This mechanism explains a number of previously reported peculiar findings of self-modelocking and comb formation.
Esmerando Ecoto +3 more
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A new mode-locking mechanism is discussed that solely relies on four-wave mixing and does not require a saturable absorber. This mechanism explains a number of previously reported peculiar findings of self-modelocking and comb formation.
Esmerando Ecoto +3 more
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, 2021
Electromagnetic riveting (EMR) has advantages in joining dissimilar materials due to the stable forming and uniform hole expansion. In this paper, CFRP and Al sheets were joined in three ways by EMR: slug rivet (SR), round head rivet (CFRP sheet was ...
Hao Jiang +3 more
semanticscholar +1 more source
Electromagnetic riveting (EMR) has advantages in joining dissimilar materials due to the stable forming and uniform hole expansion. In this paper, CFRP and Al sheets were joined in three ways by EMR: slug rivet (SR), round head rivet (CFRP sheet was ...
Hao Jiang +3 more
semanticscholar +1 more source
Revealing the Buildup Dynamics of Harmonic Mode‐Locking States in Ultrafast Lasers
Laser & Photonics reviews, 2019Harmonic mode‐locking (HML) is an important technique enabling the generation of high‐repetition‐rate ultrashort pulses. Using an emerging time‐stretch dispersive Fourier transform technique, the experimental observation of the entire buildup process of ...
Xueming Liu, M. Pang
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Revealing the Transition Dynamics from Q Switching to Mode Locking in a Soliton Laser.
Physical Review Letters, 2019Q switching (QS) and mode locking (ML) are the two main techniques enabling generation of ultrashort pulses. Here, we report the first observation of pulse evolution and dynamics in the QS-ML transition stage, where the ML soliton formation evolves from ...
Xueming Liu, D. Popa, N. Akhmediev
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Asynchronous soliton mode locking
Optics Letters, 1994We report a harmonically mode-locked erbium-doped fiber ring laser with short solitons. A phase modulator running asynchronously with the pulses provides pulse start-up, continuous background cleanup, and a new form of pulse timing stabilization. Steady-state operation of picosecond solitons at a repetition rate of 1 GHz was obtained with no need for ...
C R, Doerr, H A, Haus, E P, Ippen
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Optics Letters, 1992
Self-focusing in conjunction with an intracavity aperture creates a power-dependent amplitude modulation in laser oscillators, which allows passive mode locking. A simple analytical formalism yields closed-form expressions for the depth of passive amplitude modulation introduced by either the spatial gain profile or a hard aperture inserted in the ...
T, Brabec +3 more
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Self-focusing in conjunction with an intracavity aperture creates a power-dependent amplitude modulation in laser oscillators, which allows passive mode locking. A simple analytical formalism yields closed-form expressions for the depth of passive amplitude modulation introduced by either the spatial gain profile or a hard aperture inserted in the ...
T, Brabec +3 more
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Mechanisms of spatiotemporal mode-locking
, 2019Mode-locking is a process in which different modes of an optical resonator establish stable synchronization through non-linear interactions. This self-organization underlies light sources that enable many modern scientific applications, such as ultrafast
L. Wright +8 more
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2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2021
During the last decade, self mode-locking and resulting comb formation have emerged from a controversially discussed anomaly to a hot topic in semiconductor laser physics. Initial experimental reports claimed mode-locking in a cavity lacking the stabilizing action of a saturable absorber [1] .
Gunter Steinmeyer +2 more
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During the last decade, self mode-locking and resulting comb formation have emerged from a controversially discussed anomaly to a hot topic in semiconductor laser physics. Initial experimental reports claimed mode-locking in a cavity lacking the stabilizing action of a saturable absorber [1] .
Gunter Steinmeyer +2 more
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Decaying evolution dynamics of double-pulse mode-locking
Photonics Research, 2018Taking advantage of the dispersive Fourier transformation technique, the decaying evolution processes of double-pulse mode-locking in a single-walled carbon-nanotube-based Er-doped fiber laser are observed in detail for the first time to our knowledge ...
Guomei Wang +4 more
semanticscholar +1 more source