00509nam a22001457a 4500 0 0 0 0 fsd fsd 2020-11-05 Multi Line Books 1062.55 0 621.369 KAT 45909 2020-11-05 00:00:00 1 BK 31700 31700 9789350144480 (pbk) 621.369 KAT Katiyar, Sapna Optical fiber communication New Delhi S.K. Kataria & sons 2019 484 p. : ill. ; 23 cm. Includes index . Applied science Electrical engineering Optical fiber communication Electromagnetic waves Light--Transmission Optical fibers Heterojunctions FEAS BK