Title :
High speed single frequency laser diodes and wide bandwidth detectors for multi-Gb/s fiber-optic communication systems
Author :
Mito, I. ; Torikai, T. ; Yamaguchi, M. ; Fujita, S. ; Henmi, N. ; Kobayashi, K.
Author_Institution :
NEC Corp., Tokyo, Japan
Abstract :
InGaAsP distributed-feedback laser diodes (DFB LDs) and InGaAs avalanche photodiode/protodiodes (APD/PDs) for multigigabit-per-second (multi-Gb/s) fiber-optic communication (FOC) systems are described. A modulation bandwidth of 8 GHz was achieved in lambda /4-shifted 1.5 mu m DFB-DC-PHB LDs with narrow mesa structure. This bandwidth and the maximum gain-bandwidth product as high as 7.5 GHz and 75 GHz, respectively, have been achieved in InGaAs PLEGAPDs with 30 mu m Phi receiving area. Spectral behavior for DFB LDs was studied, through multi-Gb/s range transmission experiments. Error rate floor has been found to be clearly correlated to the gain difference between the main mode and the largest submode for DFB LDs. Experimental results on 10 Gb/s modulation/demodulation and on the spectral properties under multi-Gb/s modulation are also described.<>
Keywords :
III-V semiconductors; avalanche photodiodes; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; optical communication equipment; optical links; optical modulation; semiconductor junction lasers; 1.5 micron; 10 Gbit/s; 7.5 GHz; 8 GHz; III-V semiconductors; InGaAs; InGaAsP; avalanche photodiode; demodulation; distributed-feedback laser diodes; fiber-optic communication systems; modulation bandwidth; multigigabit systems; narrow mesa structure; protodiodes; wide bandwidth detectors; Bandwidth; Demodulation; Diode lasers; Frequency response; Indium gallium arsenide; Optical fiber communication; Optical modulation; Optical noise; Optical receivers; Parasitic capacitance;
Conference_Titel :
Communications, 1988. ICC '88. Digital Technology - Spanning the Universe. Conference Record., IEEE International Conference on
Conference_Location :
Philadelphia, PA, USA
DOI :
10.1109/ICC.1988.13581
