CAJ | 학술논문

提出了一种在基于光外差法毫米波生成系统中估算由偏振膜色散(PMD)引起的功率损耗的新方法.不同于之前的方法,此方法将在光纤中传输的光载波视为一个随机过程,计算出了其自相关函数,并利用帕斯瓦尔定理估算功率损耗.利用此方法估算出在单模光纤(SMF)中由PMD引起的功率损耗,计算结果与之前方法得出的结果相似,证明了此方法的正确性.最后,直观地给出60GHz 信号在3个不同传输距离下由PMD引起的功率损耗.
제출료일충재기우광외차법호미파생성계통중고산유편진막색산(PMD)인기적공솔손모적신방법.불동우지전적방법,차방법장재광섬중전수적광재파시위일개수궤과정,계산출료기자상관함수,병이용파사와이정리고산공솔손모.이용차방법고산출재단모광섬(SMF)중유PMD인기적공솔손모,계산결과여지전방법득출적결과상사,증명료차방법적정학성.최후,직관지급출60GHz 신호재3개불동전수거리하유PMD인기적공솔손모.
A new approach was put torward for estimating the polarization mode dispersion (PMD) induced power degradation to do a performance analysis of millimeter-wave(mm-wave) generation systems based on optical self-heterodyne technique.Unlike those established ones,this new approach was proposed from another perspective.Considering the optical carrier which is distributed over optical fiber as a stochastic process.The autocorrelation function of the stochastic process was calculated,and then the power degradation could be estimated with Parseval's theorem.This approach to estimate PMD-induced power degradation in normal signal mode fiber(SMF) was used.The results of the approach are well approximates to those established ones,which proves that the theoretical approach is correct.At last,schematics of the power degradation of a 60 GHz signal due to PMD with three different fiber lengths were given to provide intuitive assistance for readers.