Broadly tunable self-starting passively mode-locked Ti:sapphire laser with triple-strained quantum-well saturable Bragg reflector

Jia Min Shieh, T. C. Huang, Kai-Feng Huang, Chi Luen Wang, Ci Ling Pan*

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

We demonstrate broadband mode-locking of femtosecond Ti: sapphire lasers with a new type of saturable Bragg reflector (SBR). Triple-strained quantum wells with separate and sequential bandgaps were used as the absorbing layer. The saturation fluence was as low as 7 μJ/cm2. Self-starting sub-100 fs pulses tunable from 768 to 804 nm were generated in a standard X-folded cavity without intracavity tight focusing on the SBR or temperature tuning. The threshold fluence for self-starting mode-locking was 1 μJ/cm2.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalOptics Communications
Volume156
Issue number1-3
DOIs
StatePublished - 1 Nov 1998

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