Passively mode-locked short pulse laser
OwnerAndreas Stingl, Christian Spielmann +1inventors
InventorsAndreas Stingl, Christian Spielmann, Ferenc Krausz
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Abstract
In a passively mode-locked short pulse laser arrangement including a laser resonator to which a pump beam is supplied, a titanium-sapphire (Ti:S) laser crystal, an optical Kerr element formed by the laser crystal itself, and an aperture restricting the resonator laser beam, the aperture has an arcuate or polygonal shape for adaptation to the beam cross-section.
Claims9
A passively mode-locked short pulse laser arrangement comprising a laser resonator supplied with a pump beam and causing a resonator laser beam, a laser crystal including an optical Kerr element and an aperture restricting said resonator laser beam, said aperture having an opening with an at least partially arcuate or polygonal rim, and further wherein said aperture comprises two aperture parts adjustable relative to each other, each of said aperture parts having an arcuate or polygonal recess forming said rim, said aperture being adjustable to minimize losses, to achieve an effective mode locking and to broaden spectral range.
Dependencies are inferred from the claim text.