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Optical Engineering

Reconfigurable optical interconnection network for multimode optical fiber sensor arrays
Author(s): Ray T. Chen; Daniel P. Robinson; Huey T. Lu; Michael R. Wang; Tomasz P. Jannson; Robert J. Baumbick
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Paper 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.

Paper Details

Date Published: 1 May 1992
PDF: 9 pages
Opt. Eng. 31(5) doi: 10.1117/12.56154
Published in: Optical Engineering Volume 31, Issue 5
Show Author Affiliations
Ray T. Chen, Univ. of Texas/Austin (United States)
Daniel P. Robinson, Physical Optics Corp. (United States)
Huey T. Lu
Michael R. Wang, Physical Optics Corp. (United States)
Tomasz P. Jannson, Physical Optics Corp. (United States)
Robert J. Baumbick, NASA (United States)

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