1 March 1994 Optical waveguide circuit board with a surface-mounted optical receiver array
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A photonic circuit board is fabricated for potential application to interchip and interboard parallel optical links. The board comprises photolithographically patterned polymer optical waveguides on a conventional glass-epoxy electrical circuit board and a surface-mounted integrated circuit (IC) package that optically and electrically couples to an optoelectronic IC. The waveguide circuits include eight-channel arrays of straights, cross-throughs, curves, self-aligning interconnects to multifiber ribbon, and out-of-plane turning mirrors. A coherent, fused bundle of optical fibers couples light between 45-deg waveguide mirrors and a GaAs receiver array in the IC package. The fiber bundle is easily aligned to the mirrors and the receivers and is amenable to surface mounting and hermetic sealing. The waveguide-receiver-array board achieved error-free data rates up to 1.25 Gbits/s per channel, and modal noise was shown to be negligible.
J. Eric Thomson, Harold Levesque, Emil Savov, Fred Horwitz, Bruce L. Booth, Joseph E. Marchegiano, "Optical waveguide circuit board with a surface-mounted optical receiver array," Optical Engineering 33(3), (1 March 1994). https://doi.org/10.1117/12.157672 . Submission:

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