海底光缆通信系统YearB(Gb/sL(kmSystemComments70TAT-819880.281.3um,multimodelasers80TAT-919910.561.55um,DFBlasers0.56801993TAT-10/111.55μm,DFBlasers5.00501996TAT-12/131.55um,optical amplifiersAC-150199880.01.55um,WDM,amplifiersTAT-1420011280501.55um,denseWDM50AC-2200112801.55μum,denseWDM5019202001360Atlantic1.55um,denseWDM502560Tycom20021.55μum,denseWDM50FLAG200248001.55um,denseWDM到2001年为止，跨大西洋的WDM光纤通信系统总容量达10Tb/s
海底光缆通信系统 到2001年为止，跨大西洋的WDM光纤通信系统总容量达10Tb/s
作业1.2 Calculate the transmission distance over which theoptical power will attenuate by a factor of 10 for threefibers with losses of 0.2, 20, and 2000 dB/km. Assumingthat the optical power decreases as exp(-aL), calculate a(in cm-1) for the three fibers1.4 A 1-hour lecture script is stored on the computer harddisk in the ASCII format.Estimate the total number ofbits assuming a delivery rate of 200 words per minuteand on average 5 letters per word. How long will it taketo ransmit the script at a bit rate of 1 Gb/s?
作业 1.2 Calculate the transmission distance over which the optical power will attenuate by a factor of 10 for three fibers with losses of 0.2, 20, and 2000 dB/km. Assuming that the optical power decreases as exp(-aL), calculate a (in cm-1) for the three fibers. 1.4 A 1-hour lecture script is stored on the computer hard disk in the ASCII format.Estimate the total number of bits assuming a delivery rate of 200 words per minute and on average 5 letters per word. How long will it take to ransmit the script at a bit rate of 1 Gb/s?
第二章光纤
第二章 光纤