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Femtosecond-pulse laser chirp compensated by cavity-mirror dispersion

1986; Optica Publishing Group; Volume: 11; Issue: 8 Linguagem: Inglês

10.1364/ol.11.000504

1539-4794

Mikio Yamashita, Mitsuru Ishikawa, Kenji Torizuka, Takuzo Sato,

Laser Design and Applications

The duration of pulses generated from a simple colliding-pulse mode-locked cw dye laser is measured as a function of cavity-mirror dispersion. The optimum amount of mirror dispersion of ϕ̈(ω) ≅ + 1.8 × 10−28 sec2 and a suitable mirror coating for upchirp compensation are identified. The adjustment of mirror dispersion only, without additional dispersive elements, generates continuous trains of pulses as short as 50 fsec.