Abstract: A signal detector system (10) comprises a single signal detector (11) having a limited on-time during which any received electromagnetic signal can be assessed. The signal detector (11) receives electromagnetic signals from a single direction in space (D) through a single optical fibre (12), a signal splitter 13 which splits the collected signal between three optical paths (20, 30 and 40), and a signal combiner (14) which combines the portions of the signal transmitted by the three optical paths (20, 30 and 40) and transmits the combined signal to a signal detector input (15). Each of the optical paths (20, 30 and 40) includes a respective optical delay (21, 31 and 41) designed to delay transmission of any received signal towards the signal detector (11). In this manner the signal detector (11) will receive any signals that arrived at the optical fibre (12) during three separate periods of time.

Abstract: An electromagnetic signal processing system (10) comprises a plurality of optical fiber arrays (11, 12, 13, 14, 15 and 16) each having a cluster of optical fibers with their one ends (40) oriented to receive electromagnetic radiation from free-space, or to transmit electromagnetic radiation into free-space. Received electromagnetic radiation passes through respective array outputs (21, 22, 23, 24, 25 and 26) and optical delays (50, 51; 55, 56; 65) to the input (68) of a signal detector (69). Transmitted electromagnetic radiation from sources (71, 72) passes through optical delays (50, 51; 55, 56) to array inputs (21, 22, 23, 24, 25 and 26) so that the one ends (40) of the optical fibers transmit the electromagnetic radiation into free-space.

Abstract: A signal processing system (10) has a plurality of optical fibers (40, 42, 43) with their one ends (40) mounted in an array board (41) to receive electromagnetic radiation. A coupler (54) interconnects the other ends of the optical fibers (42, 43) in parallel such that electromagnetic radiation is first coupled together and then directed into two or more independent processing channels (45, 47).

Abstract: A laser-radar receiver comprising an array of optical fibers, wherein the opposite ends of the optical fibers are connected to at least one electromagnetic radiation detector, each of the optical fibers having differing physical characteristics which result in known delays in the transmission time of pulsed electromagnetic radiation.

Abstract: A laser-radar receiver comprising an array of optical fibers, wherein the opposite ends of the optical fibers are connected to at least one electromagnetic radiation detector, each of the optical fibers having differing physical characteristics which result in known delays in the transmission time of pulsed electromagnetic radiation.

Abstract: An electromagnetic radiation (EMR) multiple pulse generator, comprising, an EMR source for producing discrete pulses of radiation, an EMR splitter for receiving the pulses of radiation produced by the EMR source, said splitter providing a plurality of EMR transmission paths for the received pulses, each of said transmission paths having physical characteristics for modifying EMR pulses passing through said paths relative to the input pulses, an EMR combiner for combining the modified outputs of said plurality of EMR transmission paths, and at least one combined EMR output transmission path for transmitting said combined EMR output.

Abstract: Apparatus for directing electromagnetic radiation (EMR) comprising an EMR source for producing discrete pulses of radiation, an EMR splitter, the EMR splitter providing a plurality of EMR transmission paths for received pulses, the EMR transmission paths terminating in an array, and optical means for receiving EMR emanating from the array and for directing said EMR.

Abstract: A laser-radar receiver comprising an array of optical fibres, wherein the opposite ends of the optical fibres are connected to at least one electromagnetic radiation detector, each of the optical fibres having differing physical characteristics which result in known delays in the transmission time of pulsed electromagnetic radiation.