TY  - BOOK
AU  - Ghatak, Ajoy 
TI  - Optics 
SN  - 0-07-460138-5 
U1  - 621.382 4 GHA  
PY  - 2002///
CY  - Tata mcgraw hill 
PB  - New Delhi 
KW  - OPTICAL COMMUNICATION
ER  -