Cavity configurations for soft-aperture Kerr-lens mode locking and multiple-period bifurcations in Ti:sapphire lasers

Ja Hon Lin, Ming Dar Wei, Wen Feng Hsieh, Hsiao Hua Wu

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

We find that soft-aperture Kerr-lens mode locking (SAKLM) in a Ti:sapphire laser always takes place around certain discrete cavity configurations accompanied by peculiar beam patterns. By correlating the superposition of proper transverse modes to the observed beam patterns and fitting the beat frequencies to the resonance equation, we discovered that the patterns for SAKLM are formed by phase locking of the fundamental mode with specific degenerate transverse modes that occur near different degenerate cavity configurations. As predicted by the stability analysis, period-3 and period-2 SAKLM does occur around the 1/3- and 1/4-degenerate cavity configurations, which cannot be fully explained in terms of total mode locking of TEM 00 and TEM01 modes.

Original languageEnglish
Pages (from-to)1069-1075
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Volume18
Issue number8
DOIs
Publication statusPublished - 2001 Aug

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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