Title :
10 Gbit/s repeaterless transmission over 258 km employing 24 ps RZ pulses
Author :
Shimizu, Katsuhiro ; Mizuochi, Takashi ; Nakagawa, Junich ; Takano, Katsumi ; Motoshima, Kuniaki ; Kitayama, Tadayoshi
Author_Institution :
Inf. Technol. R&D Centre, Mitsubishi Electr. Corp., Kanagawa, Japan
fDate :
25 Feb.-1 March 1996
Abstract :
Summary form only given. A 10 Gbit/s RZ transmission system with large loss budget is described and the repeaterless transmission employing short pulses of 24-ps-wide over 258 km is also discussed. The configurations of a 10 Gbit/s RZ transmitter and a receiver are depicted. At the transmitter, a monolithically integrated MQW-DFB-LD/MQW-EA modulator produced 24-ps-wide transform-limited pulses at 10-GHz repetition rate. The signal power was boosted to + 22 dBm by a booster EDFA. No SBS-suppressing circuits were employed, because the SPM-induced spectral broadening could suppress the SBS effectively. At the receiver, a low-noise optical pre-amplifier was followed by a wide-band optical filter.
Keywords :
distributed feedback lasers; electro-optical modulation; optical fibre communication; optical fibre losses; optical filters; optical transmitters; quantum well lasers; 10 GHz; 10 Gbit/s; 10 Gbit/s RZ transmission system; 24 ps; 258 km; RZ pulses; RZ transmitter; SBS-suppression; SPM-induced spectral broadening; booster EDFA; large loss budget; low-noise optical pre-amplifier; monolithically integrated MQW-DFB-LD/MQW-EA modulator; receiver; repeaterless transmission; short pulses; signal power; transform-limited pulses; wide-band optical filter; Circuits; Erbium-doped fiber amplifier; Optical filters; Optical pulses; Optical receivers; Optical transmitters; Propagation losses; Pulse modulation; Quantum well devices; Repeaters;
Conference_Titel :
Optical Fiber Communications, 1996. OFC '96
Print_ISBN :
1-55752-422-X
DOI :
10.1109/OFC.1996.907600
