00445nam a2200157Ia 4500008004100000020001800041082001700059100001600076245006500092250000800157260003700165300002400202500001900226600002700245650001500272240925s9999    xx            000 0 und d  a9788120345805  a621.3692 GUP  aGupta, S.C. 0aTextbook on Optical Fiber Communication and its Applications  a2nd  aNew Delhi:bPHI Learningc,2012.  a903p.bNAfOriginal  aIncludes Index  aElectronic Engineering  aTechnology