Abstract: A transmitting-end fiber alignment device, includes at least one additional laser source that is provided in addition to a light source array including a plurality of light sources, and at least one quadrant detector that corresponds to the at least one additional laser source. The at least one additional laser source is positioned according to a given geometric relationship with respect to a first geometric shape that covers all of the plurality of light sources at a top surface of the light source array. A respective quadrant detector that is each of the at least one quadrant detector, is configured for sensing at least a portion of a reflected light beam that is originally transmitted by a respective additional laser source that corresponds to the respective quadrant detector, such that a misalignment of the light source array is detected.

Abstract: A laser chip includes: a plurality of main laser drivers, configured for providing a plurality of pulsed currents; a plurality of main semiconductor lasers, configured for providing a plurality of main optical signals in response to the plurality of pulsed currents respectively; at least one backup semiconductor lasers; and at least one selector, configured for selecting one or more of the plurality of main semiconductor lasers, and, selecting one or more of the at least one backup semiconductor lasers to replace the selected one or more of the plurality of main semiconductor lasers, such that the selected one or more of the at least one backup semiconductor lasers provides one or more backup optical signals that serves to replace one or more of the plurality of main optical signals associated with the selected one or more of the plurality of main semiconductor lasers.

Abstract: An electrically actuated liquid dispenser, an electrically addressable liquid dispenser and an electronic device are described.