Apparatus for creating a laser incision in tissue of a human eye (12), comprising: - patient adapter (16) configured to interface with the cornea of the human eye (12)； - a laser source (22) configured to generate pulsed laser radiation of ultrashort duration drives； - a selector (24) configured to select groups (60) of pulses of the laser radiation, each group comprising pulses a plurality of pulses with a repetition frequency of pulses of at least 100 MHz, wherein the pulse groups have a repetition frequency group no more than about 1 MHz； - A scanner device (26) configured to scan a focal point of the pulsed laser radiation； - a controller (18) configured to control the scanner device based on a control program (36) including instructions which, when executed by the controller, cause a photodisruption based LIOB in the tissue of the human eye is believed (12) for each group of pulses. characterized in that the laser source (22) includes a semiconductor laser is one of a VECSEL type, a VCSEL type and MIXSEL type, in which a pulse energy of the pulsed laser radiation generated by the semiconductor laser (22) it is in the order of 1 to 100 picojulios, and wherein the laser apparatus further comprises: - a first amplifier (52) configured to amplify the power of the pulses of the pulsed laser radiation in order nanojoules before selecting the pulse groups (60), and - a second amplifier (56) configured to amplify the pulses selected by the selector (54) by a factor of at least 10, 20, 50 or 100.Aparato láser para crear una incisión en un tejido de un ojo humano (12), comprendiendo: - un adaptador de paciente (16) configurado para establecer una interfaz con la córnea del ojo humano (12)； - una fuente de láser (22) configurada para generar radiación láser pulsada en impulsiones de duración ultracorta； - un selector (24) configurado para seleccionar grupos (60) de impulsos de la radiación láser, comprendiendo cada grupo de impulsos una pluralidad de impulsos con una fr
