PbS quantum-dot-doped glasses for ultrashort-pulse generation
K. WundkeOptical Sciences Center, University of Arizona, Tucson, Arizona 85721S. PöttingOptical Sciences Center, University of Arizona, Tucson, Arizona 85721Jason M. AuxierOptical Sciences Center, University of Arizona, Tucson, Arizona 85721Axel SchülzgenOptical Sciences Center, University of Arizona, Tucson, Arizona 85721N. PeyghambarianOptical Sciences Center, University of Arizona, Tucson, Arizona 85721N. F. BorrelliTechnology Group, Corning Inc., Research and Development Center, Sullivan Park, Corning, New York 14831
2000en
ABI
Аннотация
We investigate the use of PbS quantum-dot-doped glasses as saturable absorbers for ultrashort-pulse lasers by means of absorption bleaching experiments and numerical analysis of the pulse shaping process using the Haus’ master equation. We explain the mode-locking mechanism and the limitations of these absorbers. The generation of transform-limited fs pulses is predicted by soliton mode locking initiated by the absorption saturation of higher excited states of the quantum-dot saturable absorber.
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