Abstract: A threat coping system (10) is provided with a threat coping device (300) that copes with a coping target (30) and a control device (200) that controls the threat coping device. The control device (200) is provided with a no-coping area setting means (514) and a coping instruction means (526). The no-coping area setting means (514) sets a no-coping area (12) based on information of a no-coping target that is not to cope with. The coping instruction means (526) generates an instruction signal, that instructs the threat coping device to cope a coping target, based on the no-coping area.

Abstract: Provided are a target tracking device that efficiently tracks a target, a target tracking method, and a recording medium for storing a target tracking program. This target tracking device comprises a determination condition selector and a tracker. The determination condition selector selects a tracking mode for tracking a detected target from among a plurality of tracking modes on the basis of a group of determination conditions related to the position of the target. The tracker tracks the target in the selected tracking mode. The plurality of tracking modes include a first tracking mode that focuses on the vulnerable portion of the target and a second tracking mode that focuses on the center of gravity of the target. The target tracking device further comprises a coping device that irradiates the focused portion of the target with a laser beam to cope with the target.

Abstract: Provided are a threat-countering system and a threat-countering method for efficiently countering incoming threats by using laser irradiation. The threat-countering system comprises a countering device, a deterrent device, and a decision device. The countering device detects incoming threats and counters the threats by using laser irradiation. The deterrent device is installed to prevent threats from approaching a protected object through a deterrent region in which the power of the laser irradiation is assumed to be lower than a predetermined threshold. The decision device decides the position of the upper end of the deterrent device on the basis of the upper end of the deterrent region.

Abstract: This threat countermeasure system comprises a calculation device and a communication device. The calculation device is configured so as to determine, on the basis of the threat level of at least one target, a countermeasure position of attack on the target. The countermeasure position represents either a first countermeasure position that is attacked in order to temporarily inhibit the function of the target or a second countermeasure position that is attacked in order to stop the function of the target. A first countermeasure period during which the attack is applied to the first countermeasure position in order to at least temporarily inhibit the function of the target may be shorter than a second countermeasure period during which the attack is applied to the second countermeasure position in order to stop the function of the target.

Abstract: An optical correction is predictively performed based on a result of AI learning previously performed by use of learning data including measurement data. The optical compensation system is provided with wavefront correction optics, a sensor and a controller. The wavefront correction optics corrects a wavefront of light that passes through a given optical path. The sensor obtains environmental information in the optical path. The controller calculates, based on the environmental information, a predicted wavefront disturbance of the light that has passed through the optical path and controls the wavefront correction optics so as to cancel the predicted wavefront disturbance.

Abstract: An optical system that obtains characteristics of a transmission path in atmosphere, when laser light propagates through this transmission path, at a place separated from this transmission path and before the propagation, and corrects wavefront of the laser light based on the obtained characteristics, is provided. The optical system is provided with an irradiation device and an atmospheric characteristics obtaining system. The irradiation device irradiates an external target with light via a first optical path. The atmospheric characteristics obtaining system is arranged in a second optical path separated from the first optical path and obtains characteristics of atmospheric environment in the first optical path with respect to the irradiated light. The irradiation device is provided with wavefront correction optics. The wavefront correction optics correct wavefront of the irradiated light based on the obtained characteristics.

Abstract: A laser radiation system is provided with a search radiation section that radiates search light to a target object, a laser radiation section that radiates a laser beam, an image acquisition section that acquires a first image in which the target object irradiated with the search light is imaged and a second image in which an imaging range including the target object is imaged, a generation section that generates, based on the first and the second images, a generated image in which an influence by disturbance light is less than in the first image, and a radiation control section that controls, based on the generated image, a direction in which the laser radiation section radiates the laser beam. In addition, in the present laser radiation system, an intensity Intensity of the search light by which an image is formed in the second image is smaller than an intensity of the search light by which an image is formed in the first image.

Abstract: A phase difference measuring device is provided with a phase conversion device and a detection device. The phase conversion device converts a first laser beam that passes therethrough so that the first laser beam includes a phase distribution of one cycle in an azimuth direction in a cross section of the first laser beam included in an arbitrary virtual plane perpendicular to an optical axis of the first laser beam. The detection device detects an azimuth angle of an intensity centroid of an interference pattern generated by at least a part of a first laser beam that has passed through the phase conversion device, and a part of a second laser beam that derives from a laser beam as seed light from which the first laser beam derives, of which an optical intensity is same as the at least a part of the first laser beam, and detects an inter-beam phase difference of the second laser beam.

Abstract: A laser beam irradiation apparatus including: a plurality of laser light sources emitting first laser beams; and a light-condensing optics system having an incident face on which the first laser beams are made incident and performing an optical operation on the first laser beams to emit second laser beams. The plurality of laser light sources are configured to emit the first laser beams so that beam diameters are expanded towards the incident face. Each first laser beam overlaps at least one of the other laser beams on the incident face. The light-condensing optics system is configured so that beam diameters of second laser beams emitted from the light-condensing optics system are minimal on a target face, and a distance between a center of each second laser beam and the optical axis on the target face is smaller than a beam radius of each second laser beam on the target face.

Abstract: A threat coping system (10) is provided with a threat coping device (300) that copes with a coping target (30) and a control device (200) that controls the threat coping device. The control device (200) is provided with a no-coping area setting means (514) and a coping instruction means (526). The no-coping area setting means (514) sets a no-coping area (12) based on information of a no-coping target that is not to cope with. The coping instruction means (526) generates an instruction signal, that instructs the threat coping device to cope a coping target, based on the no-coping area.

Abstract: An underwater acoustic deception system deceives a sensor installed on a threat existing in or on water by acoustic effect in order to protect ships from the threat. The underwater acoustic deception system is provided with a control device, a laser oscillator and emission optical system. The control device determines a focusing position to focus a laser beam (50) in water in order to generate bubbles (70) at a desired position with a desired scale and emission parameters of the laser beam (50). The laser oscillator generates the laser beam (50) configured to focus in water and generate bubbles. The emission optical system emits the generated laser beam (50) to the focusing position. The underwater acoustic deception system deceives an arbitrary sensor existing in the water by acoustic effect of the bubbles (70) on the surroundings.

Abstract: A laser beam is condensed in a close position to a target object in underwater so as to generate an air bubble or plasma. The target object is efficiently destroyed by a shock by the air bubble or the plasma.

Abstract: A driving optical system is used to observe a disturbance of a wavefront of reference light received from a target and generate a wavefront in a conjugate relationship with the wavefront. A plurality of control signals are generated on a basis of a plurality of Zernike coefficients calculated as a Zernike polynomial which approximates the wavefront disturbance in order to respectively drive a plurality of deformable mirrors included in the driving optical system. An adaptive optical system is provided which can optically compensate a wavefront disturbance derived from an atmospheric fluctuation even in a case of radiating laser light to a target moving at a high speed.

Abstract: An optical correction is predictively performed based on a result of AI learning previously performed by use of learning data including measurement data. The optical compensation system is provided with wavefront correction optics, a sensor and a controller. The wavefront correction optics corrects a wavefront of light that passes through a given optical path. The sensor obtains environmental information in the optical path. The controller calculates, based on the environmental information, a predicted wavefront disturbance of the light that has passed through the optical path and controls the wavefront correction optics so as to cancel the predicted wavefront disturbance.

Abstract: An optical system that obtains characteristics of a transmission path in atmosphere, when laser light propagates through this transmission path, at a place separated from this transmission path and before the propagation, and corrects wavefront of the laser light based on the obtained characteristics, is provided. The optical system is provided with an irradiation device and an atmospheric characteristics obtaining system. The irradiation device irradiates an external target with light via a first optical path. The atmospheric characteristics obtaining system is arranged in a second optical path separated from the first optical path and obtains characteristics of atmospheric environment in the first optical path with respect to the irradiated light. The irradiation device is provided with wavefront correction optics. The wavefront correction optics correct wavefront of the irradiated light based on the obtained characteristics.

Abstract: A laser beam is condensed in a close position to a target object in underwater so as to generate an air bubble or plasma. The target object is efficiently destroyed by a shock by the air bubble or the plasma.

Abstract: A solid obstacle is removed with a high-power laser beam to establish a transmission path for a spatial laser communication. When a space in which the laser beam is transmitted is blocked off by the solid obstacle, the spatial laser communication cannot be carried out.

Abstract: A laser irradiation apparatus is provided with a controller that calculates at least one predicted movement position into which a target is predicted to move at a specific time in future, a transmission laser source that generates a transmission laser, irradiation optics configured to emit the transmission laser to the target and emit search laser to the predicted movement position and wavefront correction optics. The wavefront correction optics are configured to correct a wavefront of the transmission laser at the specific time based on observation light that returns when the search laser is emitted to the predicted movement position.

Abstract: An underwater acoustic deception system deceives a sensor installed on a threat existing in or on water by acoustic effect in order to protect ships from the threat. The underwater acoustic deception system is provided with a control device, a laser oscillator and emission optical system. The control device determines a focusing position to focus a laser beam (50) in water in order to generate bubbles (70) at a desired position with a desired scale and emission parameters of the laser beam (50). The laser oscillator generates the laser beam (50) configured to focus in water and generate bubbles. The emission optical system emits the generated laser beam (50) to the focusing position. The underwater acoustic deception system deceives an arbitrary sensor existing in the water by acoustic effect of the bubbles (70) on the surroundings.

Abstract: A method of irradiating an electromagnetic pulse includes specifying a position of a target having electronic equipment; setting the light-condensing point based on the position of the target; and condensing the laser beam to generate plasma in the light-condensing point such that the electromagnetic pulse generated from the plasma is irradiated to the electronic equipment. In this way, a method and system for irradiating an electromagnetic pulse are realized which can irradiate the electromagnetic pulse of a large output while restraining diffusion of the electromagnetic pulse.