In optical networks without optical amplifiers (ONWOAs) photons may fade or fail to be detected, but new photons cannot be generated. Hence, under normal conditions, only 1→0 errors can occur. However, in some situations, the photodetector may generate a false 0→1 error. This mostly occurs in cases when the dark current is higher than specified. With this in mind, in this paper, the authors present a class of codes suitable for use in ONWOAs using self-synchronous scramblers. The presented codes can correct single errors and random asymmetric (1→0) errors within a b-bit byte. Unlike classical codes, these codes use integer and lookup table operations. As a result, their interleaved version, implemented on a dual-core 3.0 GHz processor, achieves the theoretical throughput above the operating rate of 10G networks.

在没有光放大器（ONWOA）的光网络中，光子可能会褪色或无法检测到，但是无法生成新的光子。因此，在正常情况下，只能发生1→0错误。但是，在某些情况下，光电检测器可能会产生错误的0→1错误。这通常发生在暗电流高于规定值的情况下。考虑到这一点，在本文中，作者提出了适用于使用自同步扰码器的ONWOA中的一类代码。所提供的代码可以纠正b位字节内的单个错误和随机非对称（1→0）错误。与经典代码不同，这些代码使用整数和查找表操作。结果，它们的交错版本在双核3.0 GHz处理器上实现，可在10G网络的运行速率之上实现理论吞吐量。