Disclosed are a laser transmitter and a method for operating the same. The laser transmitter may include: a laser signal receiving unit configured to receive monitor laser signals transmitted by a laser-based speed monitor; a laser signal transmitting unit configured to transmit jamming laser signals against the received monitor laser signals; and a control unit configured to measure the signal intervals of the received monitor laser signals when the monitor laser signals are detected, compute information for the jamming laser signals by using the measured signal intervals, and generate the jamming laser signals according to the computed information.

A method and apparatus for beam combining for multiple multimode semiconductor laser diodes includes achieving beam combining in radiant space to provide a directional laser beam with a uniform high radiant intensity level distribution over a large area at a long distance from the source. The method uses more than one broad area high-power multimode semiconductor laser diode and individual optics for collimation, and includes combining the beams of these emitters to provide a relatively homogeneous radiant intensity beam at a long distance for applications such as directed energy delivery, free-space laser communication, and directional infrared countermeasures.

A method and apparatus for beam combining for multiple multimode semiconductor laser diodes includes achieving beam combining in radiant space to provide a directional laser beam with a uniform high radiant intensity level distribution over a large area at a long distance from the source. The method uses more than one broad area high-power multimode semiconductor laser diode and individual optics for collimation, and includes combining the beams of these emitters to provide a relatively homogeneous radiant intensity beam at a long distance for applications such as directed energy delivery, free-space laser communication, and directional infrared countermeasures.

A control device (10) includes a control unit (100). The control unit (100) controls a plurality of irradiation devices (20) that emit electromagnetic waves. The control unit (100) outputs a plurality of first periodic signals for respectively controlling movements of the irradiation directions of the electromagnetic waves to a first direction in the plurality of irradiation devices (20), and a plurality of second periodic signals for respectively controlling movements of the irradiation directions of the electromagnetic waves to a second direction in the plurality of irradiation devices. The periods of the plurality of first periodic signals are the same as each other. The effective repetition number of the movement of the irradiation direction to the second direction, while the irradiation direction is moved one period to the first direction, is the same for the plurality of irradiation devices.

A control device (10) includes a control unit (100). The control unit (100) controls a plurality of irradiation devices (20) that emit electromagnetic waves. The control unit (100) outputs a plurality of first periodic signals for respectively controlling movements of the irradiation directions of the electromagnetic waves to a first direction in the plurality of irradiation devices (20), and a plurality of second periodic signals for respectively controlling movements of the irradiation directions of the electromagnetic waves to a second direction in the plurality of irradiation devices. The periods of the plurality of first periodic signals are the same as each other. The effective repetition number of the movement of the irradiation direction to the second direction, while the irradiation direction is moved one period to the first direction, is the same for the plurality of irradiation devices.

A smart laser pointer is disclosed in this application that includes a laser coupled to a processor that can disable the laser from operating for a period of time (T) based on a disabling trigger. The smart laser pointer may also include an optical receiver coupled to the processor that detects received laser signals that are emitted from the laser after they are reflected off of a target and a memory storing position information threshold limits. The processor calculates measured position information based on the received laser signals detected by the optical receiver and compares them to the position information threshold limits. A disabling trigger occurs when the position information exceeds the position information threshold limits. The position information and threshold limits may include a distance or a velocity. These threshold limits are provided to ensure that the smart laser pointer cannot be used to target distant fast moving aerial targets such as commercial aircraft or helicopters, but still operate in legitimate contexts such as a conference room with a target such as a display screen that is stationary and close to the smart laser pointer. The smart laser pointer can include a unique identifier that is encoded on a signal emitted by the laser to enable a third party law enforcement agency to determine the exact laser pointer that is emitting the signal. The smart laser pointer may include a GPS chip to determine its exact geographic location. This geographic location information is encoded on a signal emitted by the laser to enable a third party law enforcement agency to determine the exact location of the laser pointer that is emitting the signal. The smart laser pen may include a blue tooth antenna to enable it to communicate with a mobile application on a mobile device. The mobile application is configured to receive text messages from law enforcement that instruct the mobile application to transmit a disabling signal to the smart laser pen to shut down the laser and prevent it from operating. The smart laser pen may also include an RF antenna that can receive a disabling command to shut down the laser and prevent it from operating. These features allow law enforcement to identify, locate, and shut down the operation of the smart laser pen, thereby enhancing aircraft safety.

A system comprising includes a plurality of three dimensional line-scanner LIDAR sensors disposed to provide a set of fanned beams that travel from one horizon into the air to the other horizon arranged to provide a light fence to detect an object that breaks the light fence and a sensor processor connected to the plurality of three dimensional multi-beam line-scanner LIDAR sensors to establish a vector of travel and a velocity of the object that passes through the multi-beam light fence at the location of where the beams are broken.

A system comprising includes a plurality of three dimensional line-scanner LIDAR sensors disposed to provide a set of fanned beams that travel from one horizon into the air to the other horizon arranged to provide a light fence to detect an object that breaks the light fence and a sensor processor connected to the plurality of three dimensional multi-beam line-scanner LIDAR sensors to establish a vector of travel and a velocity of the object that passes through the multi-beam light fence at the location of where the beams are broken.

Disclosed are a laser transmitter and a method for operating the same. The laser transmitter may include: a laser signal receiving unit configured to receive monitor laser signals transmitted by a laser-based speed monitor; a laser signal transmitting unit configured to transmit jamming laser signals against the received monitor laser signals; and a control unit configured to measure the signal intervals of the received monitor laser signals when the monitor laser signals are detected, compute information for the jamming laser signals by using the measured signal intervals, and generate the jamming laser signals according to the computed information.

A control method for a LiDAR. The method comprises: transmitting a multi-pulse sequence with a time interval encoding; receiving LiDAR echoes to determine whether the LiDAR echoes include a valid echo pulse sequence corresponding to the multi-pulse sequence; when the LiDAR echoes includes the valid echo pulse sequence corresponding to the multi-pulse sequence, determining whether the valid echo pulse sequence is interfered with according to a pulse characteristic of the valid echo pulse sequence; and when the valid echo pulse sequence is interfered with, adjusting the time interval encoding at a next transmission according to a distribution of an interference signal in the LiDAR echoes. The setting of the time interval encoding is adjusted at the next transmission according to the distribution of the interference signal in the LiDAR echoes. The pulse characteristic includes pulse intensities and pulse widths.