Title :
Wide-band integrated optical receiver with improved dynamic range using a current switch at the input
Author :
van den Broeke, L.A.D. ; Nieuwkerk, A.J.
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
7/1/1993 12:00:00 AM
Abstract :
The front end of optical transmission systems usually consists of a low-noise, wide-band, negative-feedback transimpedance or current amplifier. The dynamic range of current amplifiers can be extended considerably by passing large input currents directly to the output of the amplifier. It is shown that the required current switch does not deteriorate the sensitivity of the receiver. A complete front end, using an external p-i-n photodiode, is integrated in a 2.5-GHz bipolar technology. The receiver has a dynamic range (DR) of 73 dB in a bandwidth of 220 MHz and consumes a supply current of 1.5 mA
Keywords :
bipolar integrated circuits; feedback; optical receivers; semiconductor device noise; wideband amplifiers; 1.5 mA; 2.5 GHz; 220 MHz; LNA; bipolar technology; current amplifier; current switch; dynamic range; external p-i-n photodiode; integrated optical receiver; low-noise; negative-feedback; noise behaviour; optical transmission systems; sensitivity; transimpedance amplifier; wideband frontend; Broadband amplifiers; Dynamic range; Low-noise amplifiers; Optical amplifiers; Optical receivers; Optical sensors; Optical switches; Semiconductor optical amplifiers; Stimulated emission; Wideband;
Journal_Title :
Solid-State Circuits, IEEE Journal of
