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Mode-locked ytterbium fiber lasers
Applied Optics, 2004A compact fiber laser is demonstrated with use of a Gires-Tournois compensator and a short length (2-4 cm-long) of highly doped ytterbium (Yb) fiber providing net anomalous group-velocity dispersion. With use of a novel semiconductor saturable absorber mirror based on GaInNAs structure, self-started 1.5-ps-pulse mode-locked operation was obtained at ...
Lasse, Orsila +4 more
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Mode locking of a wavelength-swept laser
Optics Letters, 2005Self-starting, stable mode-locked pulses can be generated from a wavelength-swept laser through the interplay between an intracavity scanning filter and self-phase modulation. From an Er3+-doped fiber laser employing a scanning Fabry-Perot filter, 100 ps optical pulses are obtained at a 12-MHz repetition rate with center wavelengths that are swept over
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Mode-Locking Techniques of Femtosecond Laser
2020 The 9th International Conference on Networks, Communication and Computing, 2020Ultrafast laser is a well-developed technology with its origin dated back to half a century ago, and femtosecond laser, being the type of ultrafast laser with the lowest duration, appeared in a much later stage. The essential technique which made femtosecond laser possible is mode-locking.
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Passive mode locking of the Ar^+ laser
Applied Optics, 1988We have studied passive mode locking of the Ar(+) laser using the saturable absorber rhodamine 6G in four different regimes as follows: when the Ar(+) laser operates in the colliding pulse mode locking configuration (1) with and (2) without double mode locking incorporated and also when the Ar(+) laser operates in the conventional configuration (3 ...
Y L, Wang, E, Bourkoff
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The graphene mode-locked fiber laser
SPIE Proceedings, 2011Starting from the structure of graphene, the electrical and optical properties of graphene is analyzed in this paper. Then, the transmission characteristics and the modulation for the optical pulses are discussed with the graphene waveguide model. Finally, the graphene based on the mode-locked fiber laser system is simulated, thereafter the role played
Guo Shili, Yang Aiying, Sun Yvnan
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CVD-grown MoSe2 with high modulation depth for ultrafast mode-locked erbium-doped fiber laser
Nanotechnology, 2018Two-dimensional materials have been widely used as optical modulator materials in mode-locked fiber lasers. In terms of the performance of the fiber laser, one with an ultrashort pulse and high stability has great commercial value.
Wenjun Liu +5 more
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Pulse Dynamics in an Actively Mode-Locked Laser
SIAM Journal on Applied Dynamical Systems, 2003Summary: We consider pulse formation dynamics in an actively mode-locked laser. We show that an amplitude-modulated laser is subject to large transient growth and we demonstrate that at threshold the transient growth is precisely the Petermann excess noise factor for a laser governed by a nonnormal operator.
John B. Geddes +2 more
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Q-switched and mode-locked Er-doped fiber laser using PtSe2 as a saturable absorber
Photonics Research, 2018We report a passively Q-switched and mode-locked erbium-doped fiber laser (EDFL) based on PtSe2, a new two-dimensional material, as a saturable absorber (SA). Self-started Q-switching at 1560 nm in the EDFL was achieved at a threshold pump power of 65 mW,
Kang Zhang +8 more
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Theory of mode-locked semiconductor lasers
IEEE Journal of Quantum Electronics, 1996We present a theoretical study of semiconductor mode-locked lasers at a phenomenological level. We use the slow absorber model of New and Haus, but extend the analysis by taking into account the shift in the gain maximum due to the changing number of carriers.
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SESAM mode-locked red praseodymium laser
Optics Letters, 2014We present the first semiconductor saturable absorber mirror (SESAM) mode-locked praseodymium solid-state laser. The laser is based on a Pr(3+):LiYF(4) crystal as gain medium and a GaInP-quantum well-based SESAM. Self-starting continuous-wave mode-locked laser operation with an average output power of 16 mW is achieved at a center wavelength of 639.5 ...
Maxim, Gaponenko +8 more
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