A laser marking system for marking a product includes a marking head having an electromagnetic radiation steering mechanism configured to steer electromagnetic radiation to address a specific location within a two-dimensional field of view. The electromagnetic radiation steering mechanism comprises a first optical element having an associated first actuator configured to rotate the first optical element about a first rotational axis to change a first coordinate of a first steering axis in the two-dimensional field of view and a second optical element having an associated second actuator configured to rotate the second optical element about a second rotational axis to change a second coordinate of a second steering axis in the two-dimensional field of view. The electromagnetic radiation steering mechanism comprises an electromagnetic radiation manipulator configured to introduce a difference between a first angle and a second angle (defined between the first and second rotational and steering (respectively) axes).

An optical fiber connection unit able to efficiently remove heat generated in the optical fiber connection unit. The optical fiber connection unit includes a closed circulation path, through which coolant for eliminating heat generated in the optical fiber connection unit by a laser beam propagating through the optical fiber connection unit circulates, and a coolant circulation device for causing the coolant to flow and circulate in the circulation path.

An object information acquiring apparatus is used which includes: a laser medium; a temperature controlling unit for controlling a temperature of the laser medium; an excitation unit for exciting the laser medium; a control unit for controlling the temperature controlling unit and the excitation unit; a probe for receiving acoustic waves that are generated when an object is irradiated with a laser beam from the laser medium; and a processing unit for acquiring characteristic information relating to the object from the acoustic waves, wherein the control unit does not operate the excitation unit until the temperature of the laser medium falls within a predetermined range.

An air cooling type laser diode pumped chamber includes: a laser diode portion configured to emit an excitation beam toward a plurality of different directions; a laser gain medium disposed to face the laser diode portion, so as to generate laser beam by absorbing the excitation beam emitted from the laser diode portion; a gain medium mounting portion configured to fix the laser gain medium in a state where a region of the laser gain medium to absorb the excitation beam is exposed, and configured to receive and emit heat generated from the laser gain medium to the outside by an air cooling method; and a laser diode mounting portion configured to fix the laser diode portion, and configured to receive and emit heat generated from the laser diode portion to the outside by an air cooling method.

A carbon dioxide waveguide-laser includes an elongated resonator unit and an elongated power-supply unit. The resonator and power-supply units are spaced by a cooling unit including a plurality of longitudinally extending, spaced-apart fins, with fans arranged to drive air through the spaces between the fins.

An object information acquiring apparatus is used which includes: a laser medium; a temperature controlling unit for controlling a temperature of the laser medium; an excitation unit for exciting the laser medium; a control unit for controlling the temperature controlling unit and the excitation unit; a probe for receiving acoustic waves that are generated when an object is irradiated with a laser beam from the laser medium; and a processing unit for acquiring characteristic information relating to the object from the acoustic waves, wherein the control unit does not operate the excitation unit until the temperature of the laser medium falls within a predetermined range.

On-demand laser marking device manufacturing method and laser marking device obtained by said method

Method of producing equipment for marking products by laser, comprising the steps of: having at least one base plate; having various types of modules in which equipment components are grouped; having casings, rear covers and front covers that can be attached to said base plate; selecting modules from each of the different module types; removably attaching the selected modules to the base plate; attaching the casing, rear cover and front cover to the base plate.

A fiber laser device includes: a housing; a first optical element configured to include a first fiber and a first fiber connector; and a second optical element configured to include a second fiber and a second fiber connector. The first optical element and the second optical element are optically connectable via the first fiber connector and the second fiber connector, at least a part of the first optical element is housed in a module housing, an opening is formed in a wall portion of the housing, the module housing is detachably attached inside the housing through the opening, and the end portion of the first fiber and the first fiber connector are provided to project from the module housing at one end portion of the module housing.

A laser oscillator according to this invention includes a resonator unit, heat exchangers, fans, a resonator temperature measuring unit, and a fan control unit. The resonator unit resonates a laser beam to be output. The heat exchangers are arranged adjacent to the resonator unit and are to be supplied with a cooling liquid. The fans are arranged at least at one of two opposite positions across both the resonator unit and the heat exchangers and generate airflow in one direction, which passes through both the resonator unit and the heat exchangers. The resonator temperature measuring unit measures the temperature of the resonator unit. The fan control unit controls the fans. The fan control unit switches the direction in which air is blown by the fans, based on the temperature of the resonator unit.

Described is a directed energy system that has a compact and modular configuration and that enables movement/assembly by a two-user team. The directed energy system includes one or more high-power laser sources that house one or more high-power fiber amplifiers, a beam combiner optically coupled to the one or more high-power laser sources, a beam director coupled to the beam combiner, a command and control module configurable to control operation of the one or more high-power fiber amplifiers. The directed energy system also includes a handheld controller with an integrated monitor, the handheld controller configurable to send control signals to the handheld controller module to control operation of the handheld controller module and a power module that includes batteries and power converters that provide electrical power required to run the directed energy system. Cooling of the directed energy system is performed only by ambient air contacting the directed energy system and without application of any external coolant medium to the system.