High temporal and spatial quality petawatt-class Ti:sapphire chirped-pulse amplification laser system

High temporal and spatial quality petawatt-class Ti:sapphire chirped-pulse amplification laser system

Optical parametric chirped-pulse amplification (OPCPA) operation with low gain by seeding with high-energy, clean pulses is shown to significantly improve the contrast to better than 10(-10) to 10(-11) in a high-intensity Ti:sapphire laser system that is based on chirped-pulse amplification. In addi...

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Veröffentlicht in:Optics letters 2010-05, Vol.35 (10), p.1497-1499
Hauptverfasser: KIRIYAMA, Hiromitsu, MORI, Michiaki, DAITO, I, SUZUKI, M, KONDO, S, KONDO, K, SUGIYAMA, A, BOLTON, P. R, YOKOYAMA, A, DAIDO, H, KAWANISHI, S, KIMURA, T, NAKAI, Y, TAJIMA, T, SHIMOMURA, T, SASAO, H, TANOUE, M, KANAZAWA, S, WAKAI, D, SASAO, F, OKADA, H
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum Oxide
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Lasers
Nonlinear optics
Optical parametric oscillators and amplifiers
Optics
Physics
Resonators, cavities, amplifiers, arrays, and rings
Time Factors
Titanium
Ultrafast processes
optical pulse generation and pulse compression
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Beschreibung
Zusammenfassung:Optical parametric chirped-pulse amplification (OPCPA) operation with low gain by seeding with high-energy, clean pulses is shown to significantly improve the contrast to better than 10(-10) to 10(-11) in a high-intensity Ti:sapphire laser system that is based on chirped-pulse amplification. In addition to the high-contrast broadband, high-energy output from the final amplifier is achieved with a flat-topped spatial profile of filling factor near 77%. This is the result of pump beam spatial profile homogenization with diffractive optical elements. Final pulse energies exceed 30 J, indicating capability for reaching peak powers in excess of 500 TW.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.35.001497