Title :
Eye-safety optimized launch for parallel fiber optic data links
Author :
Donhowe, Mark N. ; Garber, Pamela L. ; Theorin, Craig R. ; Casarino, Dominic A.
Author_Institution :
Gore & Assoc., Newark, DE, USA
Abstract :
A non-traditional laser transmitter launch methodology has been developed which optimizes the available launch power of the cable plant fiber per eye safety criteria instead of optimizing for coupling efficiency. Twelve-channel, 850 nm VCSELs are launched into parallel ribbon multimode optical fiber at a 13° angle which disproportionately weights the optical power in the higher order (angle) modes of the optical fiber. The impact of this mode profile change allows higher transmitted powers and relieves the transmitter optical budget for a given class of eye safety by as much as 3 dB
Keywords :
optical fibre communication; optical transmitters; semiconductor lasers; surface emitting lasers; 850 nm; VCSELs; available launch power; cable plant fiber; eye safety criteria; laser transmitter; launch methodology; mode profile change; optical budget; optical power; parallel fiber optic data links; ribbon multimode optical fiber; transmitted powers; Costs; Measurement standards; Optical design; Optical fiber cables; Optical fibers; Optical transmitters; Power generation; Power lasers; Radio transmitters; Safety;
Conference_Titel :
Electronic Components and Technology Conference, 1999. 1999 Proceedings. 49th
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5231-9
DOI :
10.1109/ECTC.1999.776330
