首页>
外国专利>
Multilevel optical signals optimized for systems having signal-dependent and signal-independent noises, finite transmitter extinction ratio and intersymbol interference
Multilevel optical signals optimized for systems having signal-dependent and signal-independent noises, finite transmitter extinction ratio and intersymbol interference
展开▼
机译:针对具有信号相关和信号独立噪声,有限的发射器消光比和符号间干扰的系统而优化的多级光信号
展开▼
页面导航
摘要
著录项
相似文献
摘要
Methods and apparatus are described to transmit and receive information encoded in multilevel optical signals that take on at least three intensity levels. Intensity levels of a transmitted multilevel optical signal are optimized to minimize a transmitted optical power required to achieve a specified decision error probability, taking account of an arbitrary admixture of impairments, including signal-dependent noise, signal-independent noise, a finite transmitter extinction ratio, and intersymbol interference. The optimizations described are implemented using analytical or numerical techniques, depending on the admixture of impairments, and can be used to achieve equal or unequal decision error probabilities at a set of decision thresholds.
展开▼