Germanium on silicon photodetectors for telecom wavelengths

Laurent Vivien; Mathieu Rouvière; Xavier Le Roux; Juliette Mangeney; Paul Crozat; Delphine Marris-Morini; Daniel Pascal; Eric Cassan; Suzanne Laval; Jean-François Damlencourt; Loubna El Melhaoui; Jean-Marc Fédéli

doi:10.1117/12.700621

14 February 2007 Germanium on silicon photodetectors for telecom wavelengths

Laurent Vivien, Mathieu Rouvière, Xavier Le Roux, Juliette Mangeney, Paul Crozat, Delphine Marris-Morini, Daniel Pascal, Eric Cassan, Suzanne Laval, Jean-François Damlencourt, Loubna El Melhaoui, Jean-Marc Fédéli

Author Affiliations +

Proceedings Volume 6477, Silicon Photonics II; 647707 (2007) https://doi.org/10.1117/12.700621
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

This paper reports on fabrication and characterization of two kinds of photodetectors: interdigited metal-germanium on silicon-metal photodetectors (Metal-Semiconductor-Metal or MSM) and pin germanium photodiodes for operation at optical telecommunication wavelengths. For both 1.31 micron and 1.55 micron wavelengths, the measured -3dB bandwidth of interdigited MSM photodetectors is 35 GHz under 2V bias for electrode spacing equal to 0.5 micron. For pin diodes at 1.55 micron wavelength, the measured -3dB bandwidth under -3V bias ranges from 9 to 29 GHz for mesa diameters from 20 to 7 microns, respectively.

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Laurent Vivien, Mathieu Rouvière, Xavier Le Roux, Juliette Mangeney, Paul Crozat, Delphine Marris-Morini, Daniel Pascal, Eric Cassan, Suzanne Laval, Jean-François Damlencourt, Loubna El Melhaoui, and Jean-Marc Fédéli "Germanium on silicon photodetectors for telecom wavelengths", Proc. SPIE 6477, Silicon Photonics II, 647707 (14 February 2007); https://doi.org/10.1117/12.700621

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