We experimentally demonstrate four-channel multiplexing of 64-bit (8 × 8) two-dimensional (2-D) parallel data links on the basis of optical space–code-division multiple access (CDMA) by using new modules of optical spatial encoders and a decoder with a new high-contrast 9-m-long image fiber with 3 × 10<sup>4</sup> cores. Each 8 × 8 bit plane (64-bit parallel data) is optically encoded with an 8 × 8, 2-D optical orthogonal signature pattern. The encoded bit planes are spatially multiplexed and transmitted through an image fiber. A receiver can recover the intended input bit plane by means of an optical decoding process. This result should encourage the application of optical space–CDMA to future high-throughput 2-D parallel data links connecting massively parallel processors.
© 1998 Optical Society of America
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4510) Fiber optics and optical communications : Optical communications
(200.4650) Optics in computing : Optical interconnects
Moriya Nakamura, Ken-ichi Kitayama, Yasunori Igasaki, and Keiji Kaneda, "Four-Channel, 8 x 8 Bit, Two-Dimensional Parallel Transmission by use of Space-Code-Division Multiple-Access Encoder and Decoder Modules," Appl. Opt. 37, 4389-4398 (1998)