Title :
Experimental 9 Gbit/s transmitter and receiver for optical transmission systems
Author_Institution :
Res. Inst. of Deutsche Bundespost Telekom, Darmstadt, Germany
Abstract :
By combining monolithic integrated GaAs and Si ICs, DFB (distributed feedback) lasers, and ternary avalanche photodiodes, it was possible to realize a 4.5-Gbit/s optical transmission system and experimental 9-Gbit/s equipment. The current bit rate in the Deutsche Bundepost network of 139.264 Mbit/s was used as input and output base. The 4.5 Gbit/s transmission signal is multiplexed from 32 input signals, and a 4-bit scrambler serves as line encoder. The 9 Gbit/s are obtained by multiplexing the 4.52-Gbit/s signal and a pseudorandom signal. Hybrid thick- and thin-film circuits and microwave-suited layouts are the necessary requirements for it.<>
Keywords :
III-V semiconductors; digital circuits; elemental semiconductors; emitter-coupled logic; gallium arsenide; hybrid integrated circuits; microwave integrated circuits; optical communication equipment; silicon; 4.5 Gbit/s; 9 Gbit/s; DFB lasers; Deutsche Bundepost network; GaAs chips; Si chips; line encoder; microwave-suited layouts; multiplexing; optical transmission systems; pseudorandom signal; scrambler; semiconductors; ternary avalanche photodiodes; thick film circuits hybrid circuits; thin-film circuits; Avalanche photodiodes; Bit rate; Distributed feedback devices; Gallium arsenide; Integrated optics; Laser feedback; Optical feedback; Optical receivers; Optical transmitters; Thin film circuits;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.146950
