Two Dimensional Optical Phased Array System

An integrated two-dimensional array of coherent emitters has been constructed from AlGaAs GRaded INdex Separate Confinement Heterostructure - Single Quantum Well (GRIN-SCH-SQW) material. The linear active integrated optic array contains: a Y-branch network to divide input optical power from one to ten branches, individual phase modulators and separate traveling-wave amplifiers for each of ten channels. The two-dimensional array is formed from two linear arrays which simulate a two-dimensional stack of linear arrays through the used of a beam combiner. The combiner overlaps the two arrays to produce a simulated 2-D array with an emitter spacing of 1.0 mm x 1.0 mm.