Title :
Waveguide-integrated Ge/Si avalanche photodetector with 105GHz gain-bandwidth product
Author :
Ang, Kah-Wee ; Ng, Joseph Weisheng ; Lim, Andy Eu-Jin ; Yu, Ming-Bin ; Lo, Guo-Qiang ; Kwong, Dim-Lee
Author_Institution :
Inst. of Microelectron., Singapore, Singapore
Abstract :
We report the first demonstration of a waveguide-integrated avalanche photodetector using Group-IV heterostructure materials. Such device achieved a responsivity of ~0.8 A/W at unity gain and an impressive gain-bandwidth product of ~105 GHz at 1550 nm photon wavelength.
Keywords :
avalanche photodiodes; elemental semiconductors; germanium; integrated optics; optical waveguides; photodetectors; silicon; gain-bandwidth product; group-IV heterostructure materials; responsivity; unity gain; waveguide-integrated avalanche photodetector; wavelength 1550 nm; Absorption; Electric breakdown; III-V semiconductor materials; Optical device fabrication; Optical devices; Optical receivers; Optical waveguides; Photodetectors; Space charge; Substrates;
Conference_Titel :
Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)
Conference_Location :
San Diego, CA
Electronic_ISBN :
978-1-55752-884-1
