Abstract: In one embodiment, a system includes a signal generator operable to generate a control waveform, an optical splitter operable to split light among first and second optical paths, and a detector in optical communication with the first optical path and operable to provide reference for the control waveform generation of the signal generator via the light of the first optical path. The system also includes an optical switch operable to attenuate a portion of the light of the second optical path based on the generated control waveform to detect a dynamic range signal.

Abstract: A compact laser is provided for in accordance with an exemplary embodiment in the present disclosure includes a compact resonator structure using a non-planar geometry of bulk components. The laser includes a preferred rotational direction of lasing modes and employs bulk components for establishing the preferred rotational direction of lasing modes within resonator. In some embodiments, the preferred rotational direction of lasing modes is established using a reflective element that is outside the resonator structure. In some embodiments, the reflective element induces polarization shifts in the reflected light that are compensated for by a wave plate, which may be outside the resonator structure.

Abstract: Embodiments herein provide for imaging and identification of obscured objects. One system herein includes a volumetric data source comprising three dimensional (3D) imaging data of a scene, and a two dimensional (2D) image source comprising 2D image data of the scene. The system also includes a processor operable to process the 2D data and the 3D data to generate a model of a material obscuring an object in the scene from sensors providing the 2D data and the 3D data. The processor is further operable to refine the model with detection data of the material from the volumetric data source, to detect the material obscuring the object based on the refined model, to generate an image of the scene, and to remove data pertaining to the material from the image to reveal the object in the image.

Abstract: A compact laser is provided for in accordance with an exemplary embodiment in the present disclosure includes a compact resonator structure using a non-planar geometry of bulk components. The laser includes a preferred rotational direction of lasing modes and employs bulk components for establishing the preferred rotational direction of lasing modes within resonator. In some embodiments, the preferred rotational direction of lasing modes is established using a reflective element that is outside the resonator structure. In some embodiments, the reflective element induces polarization shifts in the reflected light that are compensated for by a wave plate, which may be outside the resonator structure.

Abstract: Embodiments herein provide for imaging and identification of obscured objects. One system herein includes a volumetric data source comprising three dimensional (3D) imaging data of a scene, and a two dimensional (2D) image source comprising 2D image data of the scene. The system also includes a processor operable to process the 2D data and the 3D data to generate a model of a material obscuring an object in the scene from sensors providing the 2D data and the 3D data. The processor is further operable to refine the model with detection data of the material from the volumetric data source, to detect the material obscuring the object based on the refined model, to generate an image of the scene, and to remove data pertaining to the material from the image to reveal the object in the image.

Abstract: A compact laser is provided for in accordance with an exemplary embodiment in the present disclosure includes a compact resonator structure using a non-planar geometry of bulk components. The laser includes a preferred rotational direction of lasing modes and employs bulk components for establishing the preferred rotational direction of lasing modes within resonator. In some embodiments, the preferred rotational direction of lasing modes is established using a reflective element that is outside the resonator structure. In some embodiments, the reflective element induces polarization shifts in the reflected light that are compensated for by a wave plate, which may be outside the resonator structure.

Abstract: A compact laser in accordance with an exemplary embodiment in the present disclosure includes a compact resonator structure using a non-planar resonator geometry of bulk components. The laser further includes a laser gain medium and a pump source integrated within an optical path of the resonator. Some embodiments contain modifications to the resonator structure for integration of the laser gain medium, for controlling the output from the laser, and/or for controlling the physical and operational parameters of the laser. Some embodiments contain modifications to the laser gain medium or other bulk components of the resonator to integrate these bulk components within the resonator structure.