Title :
A DC-coupled wide dynamic range AGC amplifier IC for 560-Mbit/s optical transmission
Author :
Kinoshita, Taizou ; Yamashita, Kiichi ; Maeda, Minoru ; Sekine, Yasushi
Author_Institution :
Hitachi Ltd., Tokyo, Japan
fDate :
8/1/1987 12:00:00 AM
Abstract :
A wide-band high-gain AGC amplifier stabilizing the output dc level against a broad gain variation is proposed and monolithically integrated using high-speed 1-μm Si-bipolar IC technology. The fabricated IC exhibits a maximum gain of 39 dB, gain dynamic range of 44 dB, bandwidth of 800 MHz, and output dc-level fluctuation of 8 mV, and realizes wide dynamic range and direct dc-coupling of the multistage AGC amplifier. Also, in order to examine the feasibility of the fabricated IC, a 1.5-μm-wavelength optical transmission experiment was carried out using DFB-LD and InGaAs-APD. Measured minimum received optical power for an error rate of 10-9is -40 dBm at 560 Mbit/s and -38 dBm at 1.12 Gbit/s. Optical dynamic range of 30 dB is also achieved by using the fabricated IC and APD.
Keywords :
Bipolar transistor amplifiers; Gain control; Integrated optoelectronics; Optical fiber repeaters; Broadband amplifiers; Dynamic range; Gain; High speed integrated circuits; High speed optical techniques; Monolithic integrated circuits; Optical amplifiers; Photonic integrated circuits; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1987.1075611
