Mode-locked diode-pumped vanadate lasers operated with PbS quantum dots

The use of glasses doped with PbS nanocrystals as intracavity saturable absorbers for passive Q-switching and mode locking of c-cut Nd:Gd 0.7 Y 0.3 VO 4 , Nd:YVO 4 , and Nd:GdVO 4 lasers is investigated. Q-switching yields pulses as short as 35 ns with an average output power of 435 mW at a repetiti...

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Veröffentlicht in:	Applied physics. B, Lasers and optics Lasers and optics, 2009-03, Vol.94 (3), p.375-379
Hauptverfasser:	Sirotkin, A. A., Di Labio, L., Zagumennyi, A. I., Zavartsev, Yu. D., Kutovoi, S. A., Vlasov, V. I., Lüthy, W., Feurer, T., Onushchenko, A. A., Shcherbakov, I. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Engineering Glass Lasers Mode locking Nanocrystals Optical Devices Optics Photonics Physical Chemistry Physics Physics and Astronomy Pumps Quantum dots Quantum Optics Repetition Vanadates
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The use of glasses doped with PbS nanocrystals as intracavity saturable absorbers for passive Q-switching and mode locking of c-cut Nd:Gd 0.7 Y 0.3 VO 4 , Nd:YVO 4 , and Nd:GdVO 4 lasers is investigated. Q-switching yields pulses as short as 35 ns with an average output power of 435 mW at a repetition rate of 6–12 kHz at a pump power of 5–6 W. Mode locking through a combination of PbS nanocrystals and a Kerr lens results in 1.4 ps long pulses with an average output power of 255 mW at a repetition rate of 100 MHz.
ISSN:	0946-2171 1432-0649
DOI:	10.1007/s00340-008-3347-1