• Title : Image fiber optics space-CDMA parallel transmission experiment using 8x8 VCSEL/PD arrays
• Authors : Moriya Nakamura, Ken-ichi Kitayama, Yasunori Igasaki, Naoki Shamoto, and Keiji Kaneda
• Journal : Applied Optics, Vol.41, No.32, November, 2002
• Abstract : We experimentally demonstrate space-code-division multiple access (space-CDMA) based two-dimensional (2-D) parallel optical interconnections by using image fibers and 8x8 vertical-cavity surface-emitting laser (VCSEL)/photo diode (PD) arrays. Two spatially encoded four-bit (2�~2) parallel optical signals were emitted from 2-D VCSEL arrays and transmitted through image fibers. The encoded signals were multiplexed by an image-fiber coupler and detected by a 2-D PD array on the receiver side. The receiver recovered the intended parallel signal by decoding the signal. The transmission speed was 64 Mbps/ch (total throughout: 512 Mbps). Bit-error-rate (BER) measurement with a laterally misaligned PD array showed the array had a misalignment tolerance of 25 mm for a BER performance of 10-9.

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