Generation of a wide discrete visible spectrum in a frequency-doubling optical fiber |
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Authors: | N Minkovski T Mirtchev L Ivanov |
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Institution: | (1) Institute of Laser Technics, 33 Galitchica Street, Sofia, Bulgaria;(2) Department of Quantum Electronics, Sofia University, 5 J. Bourchier Blvd., Sofia, Bulgaria;(3) Institute of Electronics, Tzarigradsko Chaussee 72, Sofia, Bulgaria |
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Abstract: | We describe some special features of frequency doubling in a Ge-doped SiO2 optical fiber. The generation of a multi-frequency visible spectrum in a single short fiber pumped with 1.06 µm radiation is demonstrated. This effect is the result of an interplay between the processes of frequency doubling and third-order nonlinear frequency mixing. Most of the new components coincide with the characteristic stimulated four-wave-mixing spectrum of the fiber, although the power of the internally generated 0.532 µm pump was more than an order of magnitude below the respective thresholds. |
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Keywords: | 42 65 Ky 42 81 -i |
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