Low-Threshold Self-Mode-Locked Ti:Sapphire Laser with Double Dispersion Compensators.

  • Torizuka Kenji
    Laser Section, Optoelectronics Div., Electrotechnical Laboratory, AIST, 1–1–4 Umezono, Tsukuba, Ibaraki 305, Japan
  • Takada Hideyuki
    Laser Section, Optoelectronics Div., Electrotechnical Laboratory, AIST, 1–1–4 Umezono, Tsukuba, Ibaraki 305, Japan
  • Miyazaki Kenzo
    Laser Section, Optoelectronics Div., Electrotechnical Laboratory, AIST, 1–1–4 Umezono, Tsukuba, Ibaraki 305, Japan

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  • Low-Threshold Self-Mode-Locked Ti Sapph

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We have developed a self-mode-locked Ti:sapphire laser that operates at a low pump power. To prevent losses in the laser cavity, we produced 12.4 fs pulses at a pump power of 1.2 W with an output coupling of 6%. We have demonstrated a new cavity configuration for low-threshold mode locking, that includes two pairs of dispersion-compensation prisms in the cavity. Using this new cavity, 32-fs pulses were generated at a pump power of only 0.7 W.

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