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Ultra-broadband photodiodes and balanced detectors towards 100 Gbit/s and beyond

: Bach, H.-G.


Dutta, A.K. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Active and passive optical components for WDM communications V : 24 - 26 October 2005, Boston, Massachusetts, USA
Bellingham, WA: SPIE, 2005 (SPIE Proceedings Series 6014)
ISBN: 0-8194-6038-9
ISBN: 978-0-8194-6038-7
Optics East <2005, Boston/Mass.>
Fraunhofer HHI ()
differential phase shift keying; electro-optical modulation; indium compounds; iron compound; optical fibre communication; optical receiver; optical waveguide components; photodetector; photodiode; time-frequency analysis

The paper presents the development and optimization of ultra-broadband photodiodes (> 100 GHz) and balanced photodetectors (70 GHz). These developments are based on the waveguide-integrated photodiode type applying semi-insulating optical waveguide layers, grown on InP:Fe. The chip developments, characterizations in the frequency and time domain and the packaging of the chips into modules with fibre pigtail and 1 mm connector are described. The modules are tested at bit rates of 80, 100 and 160 Gbit/s, employing NRZ, RZ and DPSK modulation formats.