00539nam a22001217a 4500020002400000082001800024100001800042245005700060260005500117300003300172500005000205650016200255  a9788131707807 (pbk)  a621.3827bBLA  aBlack, Uyless  aOptical networksbthird generation transport systems  aNew DelhibPearson India Education Pvt. Ltd.c2007  axx, 331 p.b: ill.c; 23 cm.  aIncludes bibliographical references and index  aOptical communicationsaFiber opticsvOptical communications-MaterialsvSocial aspectsvTechnological innovationsvVocational guidancevOptical networkvFEAS