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Ultrafast dynamics of non-epitaxially grown semiconductor-doped silica film saturable absorbers

  • Rohit Prativadi Prasankumar
  • , I. Hartl
  • , J. T. Gopinath
  • , E. P. Ippen
  • , J. G. Fujimoto
  • , P. Mak
  • , M. F. Ruane

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Summary form only given. Semiconductor saturable absorbers are a widely used technology for generating femtosecond pulses in solid state lasers, providing advantages such as self-starting operation and the potential for compact laser cavities. The most common semiconductor saturable absorber devices are fabricated by molecular beam epitaxy (MBE) and have been used for both saturable absorber modelocking and initiation of Kerr lens modelocking (KLM) in many solid state laser systems. However, MBE has disadvantages including high complexity and cost as well as lattice matching constraints that limit material choice. Recently, we have developed non-epitaxially grown saturable absorber devices and applied them to self-starting KLM in a Ti:Al2O3 laser. The devices consist of InAs nanocrystallites doped into SiO2 films and deposited on sapphire substrates using a non-magnetron radio frequency (RF) sputtering system. The current work focuses on methods for reducing the saturation fluence in these devices.

Original languageEnglish
Title of host publicationTechnical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001
PublisherUnknown Publisher
Pages103-104
Number of pages2
ISBN (Electronic)155752663X, 9781557526632
DOIs
StatePublished - Jan 1 2001
Externally publishedYes
Event2001 Conference on Lasers and Electro-Optics, CLEO 2001 -
Duration: Jan 1 2001 → …

Publication series

NameTechnical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001

Conference

Conference2001 Conference on Lasers and Electro-Optics, CLEO 2001
Period01/1/01 → …

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