Ti:sapphire laser system ALLS

INRS - institute national de la recherche scientifique, Quebec, Canada

• Laser characteristics
• - 35 fs pulse duration
• - 10 Hz repetition rate
• - 350 mJ energy per pulse
• - 10 TW instatteos power
• - 2.5 W average power
• - wavelength 800 nm
• - 130 mm bimorph mirror

before correction

after correction

The use of poor quality off axis parabola degrades the beam focusing which exhibit strong astigmatism. Intensity of more then 10 W/cm was obtained after correction; the focal spot is close to the diffraction limit.

Nd:glass laser
LILU, Ecole Polytechnique, France

Ti:sapphire laser System
JAEA, Nara, Japan

• Laser characteristics
• - 600 ps pulse duration
• - monopulses every 20 min
• - 80 J energy per pulse
• - wavelength 1056 nm
• - 100 mm bimorph mirror

• Before
  correction

  

  St = 0.2

• After

  correction

  

  St = 0.6

• Before
  correction

  

• After
  correction

  

• Laser characteristics
• - 25 fs pulse duration
• - 10 Hz repetition rate
• - 600 mJ energy per pulse
• - wavelength 800 nm
• - 55 mm bimorph mirror

75% of input power is in first diffraction maximum

Ti:sapphire laser system ATLAS
Max-Plank-Institute fur Quantenoptic, Garhing, Germany

• Laser characteristics
• - 130 fs pulse duration
• - 10 Hz repetition rate
• - 800 mJ energy per pulse
• - wavelength 790 nm
• - 30 and 80 mm bimorph mirror

Smoothing the intensity with 30 mm

Before mirror

After Mirror

Improving the focusability with 80 mm mirror

Before correction St = 0.1

After correction St = 0.8

65% of input power is in first diffraction maximum.