METHOD FOR CALIBRATING THE PULSE ENERGY OF A LASER DEVICE USING A COHERENCE-OPTICAL INTERFEROMETRIC MEASURING APPARATUS

• Main Authors: RIEDEL PETER, DONITZKY CHRISTOF
• Format: Patent
• Language: English; Korean
• Published: 22.06.2011
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DIAGNOSIS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MACHINE TOOLS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MEDICAL OR VETERINARY SCIENCE; METAL-WORKING NOT OTHERWISE PROVIDED FOR; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORMING OPERATIONS; PHYSICS; PROSTHESES; SOLDERING OR UNSOLDERING; SURGERY; TESTING; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS; WELDING; WORKING BY LASER BEAM

In a method for calibrating the pulse energy of a laser device (110) that provides pulsed working laser radiation, the working laser radiation is used to perform a plurality of test ablations, in particular multiple-pulse test ablations, on one or a plurality of test objects (180) with a different pulse energy in each case. The ablation depth of each of the test ablations is measured and an associated desired pulse energy is subsequently determined on the basis of the measured ablation depths and a predefined desired ablation depth and is set on the laser device. According to the invention, the ablation depths are measured by means of a coherence-optical interferometric measuring apparatus (130). The invention furthermore relates to a laser device in particular for carrying out the above method.