| abstract |
A short pulse laser device (11) with, preferably, passive mode coupling, comprising a resonator (12) containing a laser crystal (14) and several mirrors (M1-M7; OC), whereby one thereof forms a pump beam injection mirror (M1) and a laser beam decoupling mirror (OC), also comprising a multiple reflection telescope (18) which increases resonator length. During operation, the resonator (12) has a positive average dispersion for a specific wavelength frequency range. The positive average dispersion of the resonator (12) is adjusted with the aid of the mirrors (M1-M7, OC) of the resonator (12), whereby at least some of said mirrors are embodied as dispersive mirrors. |