Design considerations for PPM PIN-BJT receivers

Author

Cryan, R.A. ; Unwin, R.T. ; Elmirghani, J.M.H.

Author_Institution

Dept. of Electr. & Electron. Eng., Manchester Polytech., UK

fYear

1992

fDate

33857

Firstpage

42675

Lastpage

42678

Abstract

Considers the design of a common-collector-cascode PPM PIN-BJT receiver. An expression is derived for the optimum first stage collector current, Iˆ_c1, that minimises the noise spectral density whilst employing a first order noise whitening filter. It is shown that, due to the occurrence of wrong slot errors which are inherent to this modulation format, this does not necessarily give the optimum receiver sensitivity. Sensitivity calculations show that, when operating at a bit-rate of 50 Mbit/s and a wavelength of 1.3 μm, this PPM PIN-BJT system can offer a sensitivity improvement of 6 dB when compared to a commercially available PCM transimpedance PIN-BJT receiver

Keywords

optical fibres; optical modulation; optical receivers; p-i-n photodiodes; pulse position modulation; 1.3 micron; 50 Mbit/s; common-collector-cascode PPM PIN-BJT receiver; first stage collector current; noise spectral density; receiver sensitivity; slot errors; whitening filter;

fLanguage

English

Publisher

iet

Conference_Titel

Linear Analogue Circuits and Systems, IEE Colloquium on

Conference_Location

Oxford

Type

conf

Filename

193541

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=281048