Results 261 to 270 of about 93,860 (299)
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IEEE Journal of Selected Topics in Quantum Electronics, 2000
The evolution of the theory of mode-locking over the last three and a half decades is reviewed and some of the salient experiments are discussed in the context of the theory. The paper ends with two-cycle pulses of a mode-locked Ti:sapphire laser.
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The evolution of the theory of mode-locking over the last three and a half decades is reviewed and some of the salient experiments are discussed in the context of the theory. The paper ends with two-cycle pulses of a mode-locked Ti:sapphire laser.
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Revisiting the physics of mode locking in lasers
SPIE Proceedings, 2014We present a way to describe mode locking through a master equation, derived from the laser Maxwell-Bloch equations, which take into account coherence in light-gain interaction. Our derivation shows that gain evolution on the fast time scale of the laser pulses must be considered, unlike in Haus master equation.
A. M. Perego +2 more
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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 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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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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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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Soviet Journal of Quantum Electronics, 1983
An investigation was made of the time structure of giant laser pulses emitted by a neodymium glass-fiber laser. Partial mode locking occurred within some mode groups. An explanation of this effect is provided.
M I Dzhibladze +4 more
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An investigation was made of the time structure of giant laser pulses emitted by a neodymium glass-fiber laser. Partial mode locking occurred within some mode groups. An explanation of this effect is provided.
M I Dzhibladze +4 more
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SPIE Proceedings, 2006
Mode locked fiber lasers are important for generation of short pulses for future high speed optical time division multiplexed (OTDM) transmission systems. The design and performance of mode locked fiber lasers are described in this talk.
N. K. Dutta +4 more
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Mode locked fiber lasers are important for generation of short pulses for future high speed optical time division multiplexed (OTDM) transmission systems. The design and performance of mode locked fiber lasers are described in this talk.
N. K. Dutta +4 more
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