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50 GHz operation of waveguide integrated photodiode at 1.55 mu m

 
: Umbach, A.; Trommer, D.; Siefke, A.; Unterborsch, G.

Interuniversity Micro-Electronics Center -IMEC-, Louvain:
21st European Conference on Optical Communication, ECOC '95. Proceedings. Vol.3: Postdeadline papers : Including Symposium on Photonic versus Electronic Technologies in Switching and Interconnection, Symposium on Broadband Networks for Video and Multimedia Services, ECOC 95 EEOC, Brussels, Belgium, 17 - 21 September 1995
Piscataway, NJ: IEEE, 1995
ISBN: 90-9008471-1
ISBN: 0-7803-2938-4
S.1075-1078
European Conference on Optical Communication (ECOC) <21, 1995, Brüssel>
Symposium on Photonic versus Electronic Technologies in Switching and Interconnection <1995, Brüssel>
Symposium on Broadband Networks for Video and Multimedia Services <1995, Brüssel>
European Exhibition on Optical Communication (EEOC) <1, 1995, Brüssel>
Englisch
Konferenzbeitrag
Fraunhofer HHI ()
integrated circuit metallisation; integrated optics; optical communication equipment; optical fibre communication; p-i-n photodiodes; rib waveguides; waveguide integrated photodiode; high speed optical communication networks; bit rates; fast photodetectors; optimised metallisation scheme; transit-time limited bandwidth; evanescent coupling; pin diodes; 1.55 micron; 44 GHz; 90 percent; 50 GHz

Abstract
The development of high speed optical communication networks operating at bit rates above 40 Gbit/s necessitates the availability of accordingly fast photodetectors for a wavelength of 1.55 mu m. Evanescently coupled waveguide integrated photodiodes with an optimised metallisation scheme are presented. A 6 mu m wide and 20 mu m long photodiode exhibits a transit-time limited bandwidth of 44 GHz and an internal quantum efficiency of 90%.

: http://publica.fraunhofer.de/dokumente/N-13280.html