00685cam a2200229 7i4500 0000028014 20230217090000.0 0071166793 9780071166799 621.38275 POW 1997 TK5103.59 POW 1997 Powers, John author An introduction to fiber optic systems John Powers. Second edition. Boston, MA: McGraw-Hill, 1997. xvii, 340 pages: illustrations; 24 cm. text rdacontent unmediated rdamedia volume rdacarrier Telecommunication Optics Fiber optics Optical communication systems