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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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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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Optical Engineering, 1992
A review of various types of active and passive mode-locked lasers is presented. Theoretical and experimental aspects of mode locking are covered. Stabilization schemes used in mode-locked laser systems are described. Techniques used in the measurement of the time duration of the ultrashort pulses and the uses of high-power, low-power, and picosecond ...
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A review of various types of active and passive mode-locked lasers is presented. Theoretical and experimental aspects of mode locking are covered. Stabilization schemes used in mode-locked laser systems are described. Techniques used in the measurement of the time duration of the ultrashort pulses and the uses of high-power, low-power, and picosecond ...
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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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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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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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Optics and Laser Technology, 2019
We demonstrate a passively Q-switched and mode-locked Tm-Ho co-doped fiber laser based on a WS2 saturable absorber (SA) fabricated by chemical vapor deposition method.
Ying-ying Yang +3 more
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We demonstrate a passively Q-switched and mode-locked Tm-Ho co-doped fiber laser based on a WS2 saturable absorber (SA) fabricated by chemical vapor deposition method.
Ying-ying Yang +3 more
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High-order harmonic mode-locked Yb-doped fiber laser based on a SnSe2 saturable absorber
Optics and Laser Technology, 2019In this paper, tin diselenide (SnSe2) was successfully prepared with liquid phase exfoliation method and embedded into polyvinyl alcohol (PVA) as a saturable absorber (SA) for obtaining harmonic mode-locked Yb-doped fiber laser generations.
Qiongyu Hu +7 more
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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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