Title :
Waveguide-integrated Germanium avalanche photodetector for low-noise and high-speed operation
Author :
Assefa, Solomon ; Xia, Fengnian ; Vlasov, Yurii A.
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
Abstract :
A waveguide-integrated Germanium avalanche photodetector with 10dB gain and excess-noise factor with keff below 0.2 was demonstrated. Gain-bandwidth-product of 350GHz was achieved at 3V. The single-crystalline Ge waveguide was integrated utilizing rapid melt growth technique.
Keywords :
avalanche photodiodes; crystal growth from melt; elemental semiconductors; germanium; integrated optics; optical waveguides; photodetectors; Ge; gain 10 dB; high-speed operation; low-noise operation; rapid melt growth technique; single crystalline waveguide; voltage 3 V; waveguide integrated avalanche photodetector; Bandwidth; Gain measurement; Germanium; Noise; Optical interconnections; Optical waveguides; Photodetectors;
Conference_Titel :
Group IV Photonics (GFP), 2010 7th IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6344-2
DOI :
10.1109/GROUP4.2010.5643341
