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Optical Engineering

Cost-effective integration of plastic optical fiber and total internal reflection mirrors in printed circuit boards for parallel optical interconnects
Author(s): Michael Edward Teitelbaum; Rohit Nair; Daniel J. O'Brien; Eric D. Wetzel; Keith W. Goossen
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Paper Abstract

A novel method of integrating a total internal reflection (TIR) mirror into an optical waveguide embedded in a printed circuit board (PCB) was demonstrated for application in chip-to-chip optical interconnects. Plastic optical fiber (POF) was placed into channels that were mechanically machined into FR-4 composite plates. The TIR mirror was created by a second mechanical machining. The mirror loss was measured to be approximately −1.6 dB per reflection. The use of POF resulted in attenuation losses in the waveguide over an order of magnitude lower than what is obtainable with typical planar waveguides that are integrated into PCBs. Monte Carlo ray tracing was used to determine the theoretical efficiency of the system as well as cross talk between channels due to optical device alignment tolerances.

Paper Details

Date Published: 1 June 2010
PDF: 7 pages
Opt. Eng. 49(6) 065401 doi: 10.1117/1.3447921
Published in: Optical Engineering Volume 49, Issue 6
Show Author Affiliations
Michael Edward Teitelbaum, Univ. of Delaware (United States)
Rohit Nair, Univ. of Delaware (United States)
Daniel J. O'Brien, U.S. Army Research Lab. (United States)
Eric D. Wetzel, U.S. Army Research Lab. (United States)
Keith W. Goossen, Univ. of Delaware (United States)

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