Self-focusing-induced saturable loss for laser mode locking

David Huang, Morrison Ulman, Lucio H. Acioli, Hermann A. Haus, James G. Fujimoto

Research output: Contribution to journalArticlepeer-review

82 Scopus citations


Self-focusing has recently been used for fast saturable absorber mode locking and femtosecond pulse generation in Ti:Al2O3 lasers. We describe the operation, design, and optimization of self-focusing loss modulators for mode locking. A new formalism is developed that simplifies the treatment of self-focusing in thick nonlinear media by using a simple transform of the complex Gaussian beam parameter. Theoretical predictions are confirmed by experimental measurements.

Original languageEnglish (US)
Pages (from-to)511-513
Number of pages3
JournalOptics Letters
Issue number7
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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