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Noise performance of HBT as photodetector in analog fiber-optic communication link
Conference proceeding

Noise performance of HBT as photodetector in analog fiber-optic communication link

L.E.M De Barros, A Paolella, P.R Herczfeld and A.A.A De Salles
1997 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference. 'Linking to the Next Century'. Proceedings, v 1, pp 338-343
1997

Abstract

Distortion Dynamic range Heterojunction bipolar transistors Optical fiber communication Optical fiber devices Optoelectronic devices Performance analysis Photodetectors Signal analysis Signal to noise ratio
An analog fiber-optic communication link using a heterojunction bipolar transistor (HBT) as photodetector is analyzed regarding its noise performance Experimental results for signal-to-noise ratio and distortion are compared to other state of the art devices as well as commercial ones. The shot noise limited system using the HBT demonstrated S/N in excess of 50 dB and spurious-free dynamic range better than a commercial PIN. Furthermore, compared to other 3- and 2-terminal devices the HBT is potentially the best candidate for future OEIC technology. Experimental results for a new HBT structure, optimized for photonic applications, shows significant improvement in terms of gain and sensitivity.

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Web of Science research areas
Engineering, Electrical & Electronic
Optics
Telecommunications
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