Abstract: The inventive Device is comprising a laser rangefinder for determining the distance along a laser axis between the device and a target object. The laser rangefinder is comprising a pumping laser and a thulium and/or holmium doped fiber laser with a thulium and/or holmium doped fiber section and two Bragg gratings arranged on both sides of the thulium and/or holmium doped fiber section of the thulium and/or holmium doped fiber laser wherein the thulium and/or holmium doped fiber laser is pumped by the pumping laser and configured to emit laser light with a wavelength in the range of 1900 nm to 2150 nm. The inventive device has an improved applicability.

Abstract: The inventive Device is comprising a laser rangefinder for determining the distance along a laser axis between the device and a target object. The laser rangefinder is comprising a pumping laser and a thulium and/or holmium doped fiber laser with a thulium and/or holmium doped fiber section and two Bragg gratings arranged on both sides of the thulium and/or holmium doped fiber section of the thulium and/or holmium doped fiber laser wherein the thulium and/or holmium doped fiber laser is pumped by the pumping laser and configured to emit laser light with a wavelength in the range of 1900 nm to 2150 nm. The inventive device has an improved applicability.