Abstract: A system includes a laser diode configured to produce seed light, a capacitor configured to charge from a voltage source, a transistor configured to control current flowing through a semiconductor optical amplifier via a controlled discharge of the capacitor, the semiconductor optical amplifier configured to amplify at least a temporal portion of the seed light in response to the current flowing through the semiconductor optical amplifier to emit an output pulse of light, and a receiver configured to detect at least a portion of the output pulse of light scattered by a target object located at a distance from the system.

Abstract: In one embodiment, a lidar system includes a light source configured to emit local-oscillator (LO) light and pulses of light, the emitted pulses of light including a first emitted pulse of light, where an optical frequency of the first emitted pulse of light is offset from an optical frequency of the LO light by a first frequency offset. The lidar system further includes a receiver configured to detect the LO light and a first received pulse of light, the first received pulse of light including light from the first emitted pulse of light scattered by a target located a distance from the lidar system. The receiver includes a detector, where: the LO light and the first received pulse of light are coherently mixed together at the detector, and the detector is configured to produce a photocurrent signal corresponding to the coherent mixing.

Abstract: Amplifier input protection circuits are described. In one embodiment, a photoreceiver for a lidar system has a photodetector configured to generate an output current in response to received light. A transimpedance amplifier is configured to receive the output current and generate a voltage output corresponding to the output current in response thereto, and a diode circuit has a cathode coupled at a node between the photodetector output and the transimpedance amplifier input.

Abstract: Amplifier input protection circuits are described. In one embodiment, a photoreceiver for a lidar system has a photodetector configured to generate an output current in response to received light. A transimpedance amplifier is configured to receive the output current and generate a voltage output corresponding to the output current in response thereto, and a diode circuit has a cathode coupled at a node between the photodetector output and the transimpedance amplifier input.

Abstract: Electronic components can be encapsulated with a poly(arylene sulfide) composition containing a mercaptosilane such as, for example, 3-mercaptopropyltrimethoxysilane.

Abstract: Electronic components can be encapsulated with a poly(arylene sulfide) composition containing a mercaptosilane such as, for example, 3-mercaptopropyltrimethoxysilane.

Abstract: A method for preparing stampable composites of poly(arylene sulfide) compositions that are radio frequency energy sensitive and reinforced with fibrous or filamentous mat; the stampable composites prepared thereby; a method for preparing a laminate with metal sheet and fiber mat reinforced poly(arylene sulfide) in which the poly(arylene sulfide) is sensitive to radio frequency energy; a bonded laminate produced thereby; stamped objects produced from the composites and/or laminates.