1 May 1992 Reconfigurable optical interconnection network for multimode optical fiber sensor arrays
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Optical Engineering, 31(5), (1992). doi:10.1117/12.56154
Abstract
A single-source, single-detector architecture has been developed to implement a reconfigurable optical interconnection network for multimode optical fiber sensor arrays. The network was realized by integrating LiNbO3 electro-optic (EO) gratings working at the Raman Nath regime and a massive fan-out waveguide hologram (WH) working at the Bragg regime onto a multimode glass waveguide. The glass waveguide utilized the whole substrate as a guiding medium. A 1-to-59 massive waveguide fan-out was demonstrated using a WH operating at 514 nm. Measured diffraction efficiency of 59% was experimentally confirmed. Reconfigurability of the interconnection was carried out by generating an EO grating through an externally applied electric field. Unlike conventional single-mode integrated optical devices, the guided mode demonstrated here has an azimuthal symmetry in mode profile which is the same as that of a fiber mode.
Ray T. Chen, Daniel P. Robinson, Huey T. Lu, Michael R. Wang, Tomasz P. Jannson, Robert J. Baumbick, "Reconfigurable optical interconnection network for multimode optical fiber sensor arrays," Optical Engineering 31(5), (1 May 1992). https://doi.org/10.1117/12.56154
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