Efficient conversion of picosecond laser pulses into second-harmonic frequency using group-velocity dispersion

Journal Article · Tue May 15 04:00:00 EDT 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.41.5645· OSTI ID:6970625

Wang, Y; Dragila, R ^[1]

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1. Laser Physics Centre Research School of Physical Sciences The Australian National University, P.O. Box 4, Canberra, Australian Capital Territory 2601, (Australia)

A computer model has been used to investigate frequency doubling of 1-psec duration high-power pulses in potassium dihydrogen phosphate (KDP) for type-II phase matching. It has been found that group-velocity dispersion can be used to advantage by predelaying the ordinary and extraordinary polarizations appropriately in a thin KDP crystal with its axes aligned at 90{degree} to the main conversion crystal. In that situation power conversion {gt}100% from the fundamental to the second harmonic can be obtained with simultaneous compression'' of the output pulse duration by up to a factor of 5.

• OSTI ID: 6970625
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 41:10; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
ALKALI METAL COMPOUNDS
COMPUTERIZED SIMULATION
CRYSTALS
DISPERSION RELATIONS
ELECTROMAGNETIC RADIATION
FREQUENCY MIXING
HARMONIC GENERATION
LASER RADIATION
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
POTASSIUM COMPOUNDS
POTASSIUM PHOSPHATES
PULSES
RADIATIONS
SIMULATION