Analysis And Performance Of A Picosecond Dye Laser Amplifier Chain

T. L. Koch; L. C. Chiu; A. Yariv

doi:10.1117/12.933204

23 April 1982 Analysis And Performance Of A Picosecond Dye Laser Amplifier Chain

T. L. Koch, L. C. Chiu, A. Yariv

Proceedings Volume 0322, Picosecond Lasers and Applications; (1982) https://doi.org/10.1117/12.933204
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

Design considerations are discussed for a simple, easy to use and relatively efficient high gain dye laser amplifier chain for CW mode-locked dye lasers. The amplifier boosts the output of a synchronously mode-locked dye laser to obtain ≈005 mj, ≤ 1 psec pulses over a ≈ 400 Å bandwidth. These pulses are suitable for efficient Raman Shifting, frequency mixing and continuum generation to vastly extend the spectral range of the system. Our amplifier is pumped by a frequency doubled Nd:YAG oscillator only, which longitudinally pumps three identical brewster cells with the same flowing dye solution in each. Contrary to popular belief, high small signal gains (≥ 10⁵) are easily attained in a single stage with longitudinal pumping, with better beam homogeneity and easier alignment than transverse pumping. Gain saturation measurements are presented which agree well with calculations. Factors which relax the pump timing sensitivity are examined. The importance of gain saturation for both efficient amplification and for amplitude stability is also discussed. The need for isolated amplifier stages is stressed and optimal amplifier cell areas for a given stage are calculated.

Citation Download Citation

T. L. Koch, L. C. Chiu, and A. Yariv "Analysis And Performance Of A Picosecond Dye Laser Amplifier Chain", Proc. SPIE 0322, Picosecond Lasers and Applications, (23 April 1982); https://doi.org/10.1117/12.933204

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