Self-starting additive-pulse mode locking of a Nd:LMA laser
نویسندگان
چکیده
منابع مشابه
Self-starting additive-pulse mode locking of a Nd:YAG laser.
We report additive-pulse mode locking of lamp-pumped Nd:YAG lasers at both 1.06 and 1.32 microm. Under completely self-starting conditions, stable cw mode-locked trains of 6-psec pulses have been achieved at an average output power of 2.4 W.
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It is shown that Kerr-lens mode locking of a Ti:sapphire laser, with no intracavity elements except the laser rod and the dispersion-compensating prisms, can be made to be completely self-starting. We achieve this result by carefully designing the resonator to maximize the nonlinear mode variations and dynamic loss modulation.
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It has been recently understood that mode locking of lasers has the signification of a thermodynamic phase transition in a system of many interacting light modes subject to noise. In the same framework, self starting of passive mode locking has the thermodynamic significance of a noise-activated escape process across an entropic barrier. Here we present the first dynamical study of the light mo...
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Active-mode locking of semiconductor lasers has pro duced optical pulses as short as 0.58 ps.! This result was achieved using the positive portion of a 16 GHz sinusoid as an electrical drive signal. For many applications, such as electro-optic sampling, it is more useful to have the mode locked optical pulses at a much lower repetition rate. This requires an electrical drive source that produ...
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Femtosecond laser physics has been transformed by the advent of the titanium-doped sapphire laser, which has been mode locked by conventional and novel means (e.g., Refs. 1-7) and directly yielded pulses as short as 25 fs.' The observation of selfmode locking5 has led to the realization that the nonlinear refractive index of the laser medium can be used to provide both amplitude modulation, thr...
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ژورنال
عنوان ژورنال: Optics Letters
سال: 1992
ISSN: 0146-9592,1539-4794
DOI: 10.1364/ol.17.001453