Title :
The design and performance of a 10 GHz bandwidth hybrid PIN receiver for coherent optical systems
Author :
Violas, Manuel A R ; Heatley, David J T ; Beddow, Deborah M. ; Creaner, Martin J. ; Duarte, A. Manuel O
Author_Institution :
Dept. de Electron. e Telecoms, Aveiro Univ., Portugal
Abstract :
A broadband optical receiver suitable for coherent system applications is described. The simple hybrid construction utilises commercial devices throughout and comprises a single InGaAs PIN followed by a low noise HEMT amplifier in a high impedance configuration. The measured 3 dB bandwidth is 10 GHz, with substantially flat magnitude and group delay responses extending up to 8 GHz. Receiver noise does not exceed 13 pA/√Hz, and hence realisable local oscillator power levels produce little sensitivity penalty
Keywords :
digital communication systems; hybrid integrated circuits; optical communication equipment; p-i-n diodes; receivers; 10 GHz; InGaAs; LNA; broadband optical receiver; coherent optical systems; high impedance configuration; hybrid PIN receiver; low noise HEMT amplifier; wideband type;
Conference_Titel :
Coherent Optical Communications, IEE Colloquium on
Conference_Location :
London
