PbS-doped phosphate glasses saturable absorbers for 1.3-μm neodymium lasers

A. A. Lipovskii, V. G. Savitski, A. M. Malyarevich, K. V. Yumashev, B. D. Sinclair

Research output: Contribution to journalConference articlepeer-review


Saturable absorber Q switching of the cw diode-pumped Nd 3+:KGd(WO 4)2 and Nd 3+:YVO 4 lasers at 1.3 μm with PbS Quantum Dots (QDs) doped phosphate glass is demonstrated and compared. Q-switched pulses of minimum 110 ns in duration and maximum average output power of 14 mW were obtained. The bleaching decay time of the PbS-doped samples was measured and found to decrease with QDs size decreasing due to enhancement of the quantum confinement effect for smaller QDs.

Original languageEnglish
Pages (from-to)113-114
Number of pages2
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Dec 2003
Event19th Congress of the International Commisssion for Optics Optics for the Quality of Life - Firenze, Italy
Duration: 25 Aug 200230 Aug 2002


  • phosphate glasses
  • neodymium lasers
  • Q switching
  • PbS quantum dots
  • bleaching


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