Title :
1.55 mu m, 2.5 Gb/s direct detection repeaterless transmission of 160 km nondispersion shifted fiber
Author :
Kuo, C.Y. ; Kao, M.L. ; French, J.S. ; Tench, R.E. ; Cline, T.W.
Author_Institution :
AT&T Bell Lab., Breinigsville, PA, USA
Abstract :
A repeaterless transmission experiment through 160 km of non-dispersion-shifted fiber at bit rate of 2.5 Gb/s is reported. A direct-current-modulated distributed-feedback laser in conjunction with an erbium-doped fiber amplifier for power amplification constitute the transmitter. The regenerator includes the conventional APD photodetector and the subsequent amplifiers and timing recovery circuit. With careful decision level and laser bias adjustment, less than 0.6 dB of overall system degradation is incurred in this simple system configuration.<>
Keywords :
distributed feedback lasers; erbium; fibre lasers; optical communication equipment; optical links; transmitters; 0.6 dB; 1.55 micron; 160 km; 2.5 Gbit/s; APD photodetector; Er:fibre amplifier; decision level; direct detection; direct-current-modulated distributed-feedback laser; laser bias adjustment; nondispersion shifted fiber; overall system degradation; power amplification; regenerator; repeaterless transmission; timing recovery circuit; transmitter; Bit rate; Circuits; Degradation; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Photodetectors; Power lasers; Repeaters; Timing; Transmitters;
Journal_Title :
Photonics Technology Letters, IEEE
