光学学报
光學學報
광학학보
ACTA OPTICA SINICA
2009年
11期
2977-2983
,共7页
韩庆生%李蔚%梅君瑶%黄德修%孙俊
韓慶生%李蔚%梅君瑤%黃德脩%孫俊
한경생%리위%매군요%황덕수%손준
差分相位调制(DPSK)%平衡接收机%马赫-曾德尔干涉仪%误码率%非线性相位噪声%特征函数%反傅里叶变换
差分相位調製(DPSK)%平衡接收機%馬赫-曾德爾榦涉儀%誤碼率%非線性相位譟聲%特徵函數%反傅裏葉變換
차분상위조제(DPSK)%평형접수궤%마혁-증덕이간섭의%오마솔%비선성상위조성%특정함수%반부리협변환
differential phase-shift keying (DPSK)%balanced direct detection receiver%Mach-Zehnder interferometer (MZI)%bit error rate (BER)%nonlinear phase noise%eigen function%inverse Fourier transformation
采用高斯函数近似方法以及傅里叶变换法分析推导出高速光纤通信技术中所采用的差分相位调制(differential phase-shift keying,DPSK)-平衡接收机系统中的差分非线性相位噪声△ψ的精确表示,把它应用于考虑了所有对接收机误码产生影响的噪声计算公式中,最终得出了DPSK-平衡接收机误码率最终完整的数学表达式,并用VPI软件进行了仿真验证.
採用高斯函數近似方法以及傅裏葉變換法分析推導齣高速光纖通信技術中所採用的差分相位調製(differential phase-shift keying,DPSK)-平衡接收機繫統中的差分非線性相位譟聲△ψ的精確錶示,把它應用于攷慮瞭所有對接收機誤碼產生影響的譟聲計算公式中,最終得齣瞭DPSK-平衡接收機誤碼率最終完整的數學錶達式,併用VPI軟件進行瞭倣真驗證.
채용고사함수근사방법이급부리협변환법분석추도출고속광섬통신기술중소채용적차분상위조제(differential phase-shift keying,DPSK)-평형접수궤계통중적차분비선성상위조성△ψ적정학표시,파타응용우고필료소유대접수궤오마산생영향적조성계산공식중,최종득출료DPSK-평형접수궤오마솔최종완정적수학표체식,병용VPI연건진행료방진험증.
The derivation of the probability density function (PDF) of differential nonlinear phase noise in diffrential phase-shift keying (DPSK)-balanced direct detection receiver of the high speed optical communication system is achieved by using the Gaussian approximation and Fourier transform methods. Finally, the result is used in computing the bit error rate (BER) considering all the noises influenced the transmission performance of the DPSK-balanced receiver system. The results have been verified by simulations through VPI software.
