High-power, femtosecond, thermal-lens-shaped Yb:KGW oscillator

High-power, femtosecond, thermal-lens-shaped Yb:KGW oscillator

Thermal lens shaping for astigmatism compensation is extended to a high-power, diode-pumped, Yb:KGW laser by employing a gain crystal geometry designed for efficient polarized pumping. The 63MHz oscillator is soliton mode-locked with the aid of a saturable Bragg reflector to yield 250fs (347fs) puls...

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Veröffentlicht in:Optics express 2008-06, Vol.16 (12), p.8629-8640
Hauptverfasser: Berger, Joel A, Greco, Michael J, Schroeder, W Andreas
Format: Artikel
Sprache:eng
Schlagworte:
Computer Simulation
Equipment Design
Equipment Failure Analysis
Hot Temperature
Lasers
Lenses
Light
Models, Theoretical
Optics and Photonics - instrumentation
Oscillometry - instrumentation
Scattering, Radiation
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Beschreibung
Zusammenfassung:Thermal lens shaping for astigmatism compensation is extended to a high-power, diode-pumped, Yb:KGW laser by employing a gain crystal geometry designed for efficient polarized pumping. The 63MHz oscillator is soliton mode-locked with the aid of a saturable Bragg reflector to yield 250fs (347fs) pulses at an output power of 3.5W (5W). Frequency doubling of the 250fs pulses with an intrinsic efficiency >60% provides 1.65W of average green power.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.16.008629