Dual-balanced detection scheme with optical hard-limiters in an optical code division multiple access system

作者：Liu Maw Yang; Hsu Yi Kai

来源：Optical Engineering, 2017, 56(3): 036105.

DOI：10.1117/1.OE.56.3.036105

• optical code division multiple access
• carrier-hopping prime code
• dual-balanced detection scheme
• optical hard-limiter
• broadband optical access network

Three-arm dual-balanced detection scheme is studied in an optical code division multiple access system. As the MAI and beat noise are the main deleterious source of system performance, we utilize optical hard-limiters to alleviate such channel impairment. In addition, once the channel condition is improved effectively, the proposed two-dimensional error correction code can remarkably enhance the system performance. In our proposed scheme, the optimal thresholds of optical hard-limiters and decision circuitry are fixed, and they will not change with other system parameters. Our proposed scheme can accommodate a large number of users simultaneously and is suitable for burst traffic with asynchronous transmission. Therefore, it is highly recommended as the platform for broadband optical access network.

• 出版日期2017-3