High efficiency, high energy optical amplifier for femtosecond pulses

William L. Nighan Jr.; Philippe M. Fauchet

doi:10.1117/12.20324

1 August 1990 High efficiency, high energy optical amplifier for femtosecond pulses

William L. Nighan Jr., Philippe M. Fauchet

Proceedings Volume 1268, Applications of Ultrashort Laser Pulses in Science and Technology; (1990) https://doi.org/10.1117/12.20324
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

We report on the design and performance of an improved copper vapor laser pumped amplifier for femtosecond optical pulses. Consideration of the large duration mismatch between pump and seed pulses, the short energy storage time of the gain dye, spatial mode matching, and polarization effects led to an amplifier design of 1.5% efficiency, which is greater than previous designs. Pulses of > 10 tJ energy and -65 fsec duration are generated that are focussable to less than twice the diffraction limit. The multiple pass amplifier incorporates optimized mode matching, an antireflection coated flowing dye cell, and a polarized, spatially smoothed pump beam.

Citation Download Citation

William L. Nighan Jr. and Philippe M. Fauchet "High efficiency, high energy optical amplifier for femtosecond pulses", Proc. SPIE 1268, Applications of Ultrashort Laser Pulses in Science and Technology, (1 August 1990); https://doi.org/10.1117/12.20324

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