• Title : High-performance optical code generation and recognition by use of a 511-chip, 640-Gchip/s phase-shifted superstructured fiber Bragg grating
• Authors : Xu Wang, Koji Matsushima, Ken-ichi Kitayama, Akihiko Nishiki, Naoya Wada, and Fumito Kubota
• Journal : Opt. Lett., Vol.30, No.4, pp.355-357 (Feb. 2005).
• Abstract : The generation and recognition of a record-length 511-chip optical code is experimentally demonstrated by use of a superstructured fiber Bragg grating (SSFBG) with s chip rate of 640 Gchip/s. Very high reflectivity (92%) is achieved with high-quality correlation properties. The temperature deviation tolerence is approximately plus/minus 0.3'C, which is within the package's temperature stability range (plus/minus 0.1'C). Experimental results show good agreement with the theory. They indicate the SSFBG's potential for processing a long optical code with an ultrahigh chip rate, which could significantly improve the system's performance.
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