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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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Application of a Mode-Locked Laser to Holography
Applied Optics, 1972A system that uses a mode-locked laser to record double exposure holograms of a rapidly changing object is described. A saturable absorber is used to mode-lock a ruby laser, producing a train of pulses of very short duration. Two of the pulses are selected by rapidly switching a Kerr cell shutter arrangement. When these two pulses are used to produce a
R H, Johnson, D F, Holshouser
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Mode-locked fiber laser gyroscope
Optics Letters, 1993We describe a new form of an all-fiber-optic gyroscope that utilizes a fiber laser. The Sagnac interferometer is used as a loop reflector with a modulated reflectivity to produce actively mode-locked optical pulses. The rotation-induced phase shift is obtained from the timing shift of the pulses.
JEON, MY +2 more
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Self-mode-locked Cr:forsterite laser
Optics Letters, 1993We have demonstrated self-sustaining operation of a mode-locked chromium-doped forsterite laser in which short-pulse formation is entirely due to the nonlinearity of the laser crystal. Stable pulse trains are generated for intracavity pulse energies from 35 to 120 nJ. Pulses less than 100 fs in duration are obtained over the range of 1.23–1.28 μm, with
Y, Pang +3 more
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Passive mode locking with a hybrid laser
Summaries of Papers Presented at the Lasers and Electro-Optics. CLEO '02. Technical Diges, 2003It has been shown that a hybrid laser, which contains both an inhomogeneously broadened and a homogeneously broadened laser media, can improve the active mode locking performance.1,2 It generates coherent and shorter pulses as compared to that by either the inhomogeneously broadened medium or the homogenously broadened medium alone.
Han, Song, Yan, Li, Menyuk, Curtis
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Passive Mode-Locking Techniques of Lasers
International Journal of High Speed Electronics and Systems, 1997In the frequency domain, mode-locking of a laser is to "lock" the relative phase of various iongitudinal modes in order to form pulses. In many applications, passive mode-locking is superior to active mode-locking because the former does not need any external active sources as required for the latter.
C. C. YANG +5 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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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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1987
For laser systems generating only axial modes, i.e. modes with Gaussian energy distribution, a phase correlation of the modes and an equal frequency spacing between the modes result in an oscillating pulse in the cavity; the outcoupled beam appears as a train of pulses.
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For laser systems generating only axial modes, i.e. modes with Gaussian energy distribution, a phase correlation of the modes and an equal frequency spacing between the modes result in an oscillating pulse in the cavity; the outcoupled beam appears as a train of pulses.
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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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