Abstract
Bleaching relaxation in PbS-quantum-dots-doped phosphate glasses in dependence on the dot size is presented. The fast bleaching decay component is increased from 14 to 93 ps as the dot size increased from 4.7 to 5.8 nm. The glasses are employed as saturable absorbers for mode-locking and Q-switching of 1.3 μm neodymium lasers. Q-switched pulses of 120 ns (0.1 μJ) in duration (energy) and the average output power of 3 mW from diode-pumped Nd 3+:KGW laser and ultrashort pulses of maximum 250 μJ in energy and 150 ps in duration from a Nd3+:YAP laser were obtained.
Original language | English |
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Pages (from-to) | 372-375 |
Number of pages | 4 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5036 |
DOIs | |
Publication status | Published - 1 Dec 2002 |
Event | Photonics, Devices, and Systems II - Prague, Czech Republic Duration: 26 May 2002 → 29 May 2002 |
Keywords
- mode-locking
- PbS
- Q-switching
- quantum dots
- bleaching
- excitons
- laser mode locking
- laser pulses
- Neodymium lasers
- Phosphates
- Q switched lasers
- semiconducting lead compounds
- semiconductor doping
- semiconductor quantum dots