title: Optical implementation of a time-domain beam former.
abstract: We report on an optical implementation of a time-domain beam former that uses a low-cost, low-power, twodimensional spatial light modulator (liquid-crystal television) to generate eight beams from eight sensors. The optical architecture can be classified as a vector-matrix multiplier. The vectors are formed from sampled sensor values by a low-power total-internal-reflection electro-optic device, and the readout is done with a linear photodiode array detector. The experimental response of the broadside beam is given.
authors.forename: P B
authors.initials: PB
authors.lastname: Rolsma
authors.forename: R D
authors.initials: RD
authors.lastname: Griffin
authors.forename: J N
authors.initials: JN
authors.lastname: Lee