Abstract: A technology for calibrating a measuring head determines, based on a deviation, one or more replacement calibration parameters configured to compensate at least partially the deviation when, in the operating of a laser device, a varying position of a variable mirror arrangement is determined based at least partially on one or more position signals and one or more replacement calibration parameters applied to the one or more position signals. The determining the one or more replacement calibration parameters is performed at least partially based on a geometric model which comprises a set of geometric angles, the set of geometric angles representing at least the varying position of the variable mirror arrangement and a direction of the deflected laser beam with respect to the varying position of the variable mirror arrangement. The technology sets the one or more replacement calibration parameters as the one or more calibration parameters.

Abstract: An Optical Coherence Tomography (OCT) device is applicable to an endoscopic measuring system. The OCT device comprises at least one light source and at least one cascaded interferometer arrangement having at least a first interferometer configured to receive light emitted by the light source and at least a second interferometer. The second interferometer is arranged behind the first interferometer with respect to an optical path of the OCT device. The OCT device further includes at least one image sensor, and at least one image fiber arranged between the cascaded interferometer arrangement and the image sensor with respect to the optical path of the OCT device. The image fiber is configured to receive at least one interferometric image output by the second interferometer and to transmit the interferometric image towards the image sensor for detection of the interferometric image by means of the image sensor.