Accession Number : ADP008094

Title :   GaAs-Based Integrated Optic RF Signal Processor Modules Using InGaAs Photoconductive Receiver Array,

Corporate Author : CALIFORNIA UNIV IRVINE

Personal Author(s) : Vu, T. Q. ; Tsai, C. S.

Report Date : APR 1992

Pagination or Media Count : 2

Abstract : There has been a great deal of effort on the integration of various types of devices on a single GaAs or InP substrate to form monolithic optoelectronics and photonic integrated circuits. Utilizing acoustooptic (AO) Bragg cell as the basic modulator, specialized integrated optic functional modules such as RF spectrum analyzers (IOSA), convolvers and correlators, space-switches, and matrix algebra processors can be realized. Toward this objective we had previously realized GHz AO Bragg cells in GaAs waveguide, and devised the ion-milling technique for fabrication of waveguide lenses and lens arrays of high efficiency and near diffraction-limited characteristics. Most recently, we have succeeded in the integration of the ion-milled lenses and a photodetector array of the InGaAs photoconductive type in a common GaAs waveguide substrate. In this paper we report the first realization of an IOSA in a common GaAs waveguide which consists of a wideband AO Bragg cell, a pair of newly devised curved hybrid lenses, and an InGaAs photoconductive receiver array.

Descriptors :   *PHOTONICS, *OPTICAL CIRCUITS, ACOUSTOOPTICS, ANALYZERS, ARRAYS, CELLS, EFFICIENCY, FABRICATION, GALLIUM ARSENIDES, INTEGRATED CIRCUITS, INTEGRATION, IONS, LENSES, MATRICES(MATHEMATICS), MODULATORS, OPTICS, PHOTODETECTORS, RECEIVERS, SPECTRUM ANALYZERS, SUBSTRATES, MONOLITHIC STRUCTURES(ELECTRONICS), OPTICAL WAVEGUIDES, INDIUM PHOSPHIDES.

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE