Abstract: A method for identifying a composition material of an object located in an environment surrounding at least one device, the object moving relative to the device, in which at least one sensor is mounted on the device and communicates with at least one central processing unit.

Abstract: Disclosed is a radiation arrangement for a multispectral active remote sensing device. The arrangement includes a transceiver, a detector, and a wavelength-adjustable narrow band stopper.

Abstract: A laser device for laser detection and ranging (LiDAR), comprising: a laser oscillator configured for emitting a pulsed laser beam, a laser beam amplifier disposed on the laser beam path, a pumping unit disposed between the laser oscillator and the laser beam amplifier and configured to, when receiving an incoming continuous pumping beam having the pumping wavelength, transmit the laser beam along the laser direction; send the pumping beam for pumping the laser oscillator in the opposite directions to the laser direction, and transmit a reflected part of the pumping beam for pumping the laser beam amplifier, in the laser direction.

Abstract: A continuous-wave frequency-modulated (FMCW) LiDAR system comprises: a laser cavity around a solid gain medium; an optical source configured to optically pump the solid gain medium at a power that determines a relaxation oscillation frequency; a structure configured to apply force to the solid gain medium associated with a mechanical resonance frequency, wherein the relaxation oscillation frequency is equal to the mechanical resonance frequency within a factor of 5; an optical arrangement configured to transmit at least one optical beam from the laser cavity towards a target, and to couple into the laser cavity a received optical signal comprising at least a portion of the optical beam reflected from the target; and circuitry configured to determine at least one of an estimated distance to the target or a speed of motion of the target based at least in part on a signal from the laser cavity.

Abstract: A method for identifying a composition material of an object located in an environment surrounding at least one device, in which at least one sensor is mounted on the device and communicates with at least one central processing unit.

Abstract: A scanning device for laser detection and ranging (LiDAR), the scanning device includes, arranged in optical free space: an optical input for receiving a pulsed broadband laser beam having a linear polarization; a separating unit configured for transmitting the laser beam along a scanning optical path while changing the polarization into a circular one; a wavelength selection unit; and a scanning unit. The separating unit is configured for deviating the reflections (4) on a broadband detector while changing the orthogonal circular polarization into an orthogonal linear polarization compared to the linear polarization of the laser beam. The broadband detector is configured to receive the deviated reflections, and to detect a time-of-flight and an optical power of the light reflection.

Abstract: A method for identifying a composition material of an object located in an environment surrounding at least one device, the object moving relative to the device, in which at least one sensor is mounted on the device and communicates with at least one central processing unit.

Abstract: A tunable light includes a super continuum light source and a non-linear crystal, the super continuum light source comprising a pump source and a generator fiber, the generator fiber having an input end and an output end, and the super continuum light source and the non-linear crystal being arranged so that at least a part of output light emitted from the output end of the generator fiber is brought into interaction with the non-linear crystal under an angle of incidence ? relative to a surface of the non-linear crystal.

Abstract: An electrical connector is provided for mating with a mating connector and includes a housing and a fulcrum latch mechanism having a latch arm extending from a latching end to an actuation end. The latch arm is configured to rotate about a fulcrum that is located along the length of the latch arm between the latching and actuation ends such that the latching end is configured to move between a latched position and an unlatched position. A connector position assurance (CPA) device is movably held by the housing such that the CPA device is configured to move relative to the housing between a mated position and an unmated position. The CPA device is movably held by the housing independently of the latch arm.

Abstract: An electrical connector is provided for mating with a mating connector and includes a housing and a fulcrum latch mechanism having a latch arm extending from a latching end to an actuation end. The latch arm is configured to rotate about a fulcrum that is located along the length of the latch arm between the latching and actuation ends such that the latching end is configured to move between a latched position and an unlatched position. A connector position assurance (CPA) device is movably held by the housing such that the CPA device is configured to move relative to the housing between a mated position and an unmated position. The CPA device is movably held by the housing independently of the latch arm.

Abstract: A long wavelength infrared laser system is disclosed where radiation from laser sources such as frequency-doubled Nd:YAG or a Cr:LiSAF is used to resonantly pump a gain medium consisting of a holmium-doped fluoride crystal having a high active ion concentration. The laser pump source has a pulse duration that may be short enough to gain switch a particular transition or long enough to allow end-pumping with high energy densities without damage. The gain material has an absorption approximately resonant with the pump source wavelength, and the dopant concentration is selected to maximize absorption strength for a given excitation. The output radiation from the laser system consists of one or more wavelengths including, in particular 3.9 nm but also other infrared wavelengths such as 1.4 &mgr;m, 2.9 &mgr;m and 3.4 &mgr;m., several of which may be produced simultaneousely from the same laser material through the mechanism of cascade transitions.

Abstract: An optical transceiver assembly comprises a plurality of optical signal sources for providing downstream signals and a plurality of photodetectors for detecting upstream signals. An optical module is disposed between the optical signal sources and the photodetectors, where the optical module includes a surface transmissive to either one of the downstream and upstream signals, and substantially reflective to the other of the downstream and upstream signals, diffractive regions for deflecting the downstream signals into the optical fibers and the upstream signals into the optical module. The optical module also includes diffractive regions for deflecting the downstream signals from the optical signal sources into the optical module and the upstream signals into the photodetectors.

Abstract: A long wavelength infrared laser system is disclosed where radiation from laser sources such as frequency-doubled Nd:YAG or a Cr:LiSAF is used to resonantly pump a gain medium consisting of a holmium-doped fluoride crystal having a high active ion concentration. The laser pump source has a pulse duration that may be short enough to gain switch a particular transition or long enough to allow end-pumping with high energy densities without damage. The gain material has an absorption approximately resonant with the pump source wavelength, and the dopant concentration is selected to maximize absorption strength for a given excitation. The output radiation from the laser system consists of one or more wavelengths including, in particular 3.9 &mgr;m but also other infrared wavelgths such as 1.4 &mgr;m, 2.9 &mgr;m and 3.4 &mgr;m., several of which may be produced simultaneousely from the same laser material through the mechanism of cascade transitions.

Abstract: A long wavelength infrared laser system is disclosed where radiation from laser sources such as frequency-doubled Nd:YAG or a Cr:LiSAF is used to resonantly pump a gain medium consisting of a holmium-doped fluoride crystal having a high active ion concentration. The laser pump source has a pulse duration that may be short enough to gain switch a particular transition or long enough to allow end-pumping with high energy densities without damage. The gain material has an absorption approximately resonant with the pump source wavelength, and the dopant concentration is selected to maximize absorption strength for a given excitation. The output radiation from the laser system consists of one or more wavelengths including, in particular 3.9 nm but also other infrared wavelgths such as 1.4 &mgr;m, 2.9 &mgr;m and 3.4 &mgr;m., several of which may be produced simultaneousely from the same laser material through the mechanism of cascade transitions.