光学相位量化的16-QAM转化QPSK全光解复用技术  

Technology of optical phase quantitative 16-QAM into QPSK by all-optical demultiplexing

作　　者：张建平[1] 赵冬娥[2] 曾小玲[1] 

机构地区：[1]重庆科创职业学院,重庆402160 [2]中北大学,太原030051

出　　处：《光通信技术》2014年第10期56-59,共4页Optical Communication Technology

摘　　要：提出并用数值证明了一种光学相位量化方法,采用先进的16-QAM调制格式进行转化。仿真实验表明,基于相敏放大器的光纤相位量化,可以解复用16-QAM信号分成两个正交相移键控(QPSK)信号在子信道间进行切换。通过数值计算比较了量化传递函数对解复用过程的性能影响,并观测了每个QPSK信号的误码性能。The potential of optical phase quantizers toward coherent processing of advanced modulation for- mats,such as 16-QAM, is proposed and numerically demonstrated. The work shows that phase quantization achieved in fiber-based phase-sensitive amplifiers can demultiplex 16-QAM into two quadrature phase shift keying （QPSK）signals, enabling subchannel switching. The numerical study highlights the impact of the quan- tizer transfer function on the performance of the demultiplexing process and numerically calculates the bit er- ror rate for each QPSK tributary after the demultiplexing procedure.

关 键 词：光学相位量化 16-QAM QPSK 解复用 

分 类 号：TN919.1[电子电信—通信与信息系统]