Abstract
We demonstrate a Si-based photodetector with a response in the 1.3-1.55 µm wavelengthrange. The active absorption layer of the pin photodiode consists of a pseudomorphic SiGeC alloy grown on a Si substrate with a Ge content of 55% and a thickness of 800 Å. By using a single-mode fiber butt coupled to the waveguide facet, the external quantum efficiency for a 400-µm long waveguide is 0.2% at 1.55 µm, and 8% at 1.3 µm. The external efficiency can be further improved by using a multiple layer absorber structure. The high efficiency and high speed characteristics together with the low leakage current density imply potential application of the SiGeC/Si photodetector for optical fiber communications and optical interconnects in the 1.3-1.55 µm wavelength range.
Original language | English |
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Pages (from-to) | 665-668 |
Number of pages | 4 |
Journal | Technical Digest - International Electron Devices Meeting, IEDM |
DOIs | |
Publication status | Published - 1996 |
Event | Proceedings of the 1996 IEEE International Electron Devices Meeting - San Francisco, CA, USA Duration: 1996 Dec 8 → 1996 Dec 11 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry