Title :
A 7-13 GHz low-noise tuned optical front-end amplifier for heterodyne transmission system application
Author :
Ebskamp, F. ; Schiellerup, Gert ; Hogdal, M.
Author_Institution :
Center for Broadband Telecommun., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
The authors present a 7-13 GHz low-noise bandpass tuned optical front-end amplifier, showing 46+or-1 dB Omega transimpedance, and a noise spectral density of about 12 pA/ square root Hz. This is the first time such a flat response and such low noise were obtained simultaneously at these frequencies, without any further equalization. A new lay-out technique enabled close monitoring of each manufacturing step, and excellent agreement between the measurements and simulations was observed. The front-end was used in an optical 2.5 Gb/s coherent CPFSK continuous phase frequency shift keying system experiment, resulting in a sensitivity of -41.7 dBm at a bit error rate of 10/sup -9/.<>
Keywords :
digital communication systems; frequency shift keying; microwave amplifiers; optical communication equipment; solid-state microwave circuits; 7 to 13 GHz; bit error rate; continuous phase frequency shift keying system; equalization; flat response; heterodyne transmission system; lay-out technique; noise spectral density; sensitivity; transimpedance; tuned optical front-end amplifier; Bit error rate; Frequency shift keying; Low-noise amplifiers; Monitoring; Optical amplifiers; Optical noise; Optical sensors; Semiconductor optical amplifiers; Stimulated emission; Virtual manufacturing;
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.1991.147070
