Abstract

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.

© 1986 Optical Society of America

Quasi-linear ring colliding-pulse mode-locked femtosecond laser using binary energy-transfer gain dye mixture

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