Please use this identifier to cite or link to this item:
https://doi.org/10.1109/LED.2008.920277
Title: | Evanescent-coupled Ge p-i-n photodetectors on Si-waveguide with SEG-Ge and comparative study of lateral and vertical p-i-n configurations | Authors: | Wang, J. Loh, W.Y. Chua, K.T. Zang, H. Xiong, Y.Z. Loh, T.H. Yu, M.B. Lee, S.J. Lo, G.-Q. Kwong, D.-L. |
Keywords: | Evanescent-coupled Lateral p-i-n Vertical p-i-n Waveguide Ge-photodetector |
Issue Date: | May-2008 | Citation: | Wang, J., Loh, W.Y., Chua, K.T., Zang, H., Xiong, Y.Z., Loh, T.H., Yu, M.B., Lee, S.J., Lo, G.-Q., Kwong, D.-L. (2008-05). Evanescent-coupled Ge p-i-n photodetectors on Si-waveguide with SEG-Ge and comparative study of lateral and vertical p-i-n configurations. IEEE Electron Device Letters 29 (5) : 445-448. ScholarBank@NUS Repository. https://doi.org/10.1109/LED.2008.920277 | Abstract: | Si-waveguide-integrated lateral Ge p-i-n photodetectors using novel Si/ SiGe buffer and two-step Ge-process are demonstrated for the first time. Comparative analysis between lateral Ge p-i-n and vertical p-Si/i-Ge/ n-Ge p-i-n is made. Light is evanescently coupled from Si waveguide to the overlaying Ge-detector, achieving high responsivity of 1.16 A/W at 1550 nm with f3db bandwidth of 3.4 GHz for lateral Ge p-i-n detector at 5 V reverse bias. In contrast, vertical p-Si/i-Ge/n-Ge p-i-n has lower responsivity of 0.29 A/W but higher bandwidth of 5.5 GHz at 5 V bias. The higher responsivity of lateral p-i-n detectors is attributed to smaller optical mode overlap with highly doped Ge region as in vertical p-i-n configuration. © 2008 IEEE. | Source Title: | IEEE Electron Device Letters | URI: | http://scholarbank.nus.edu.sg/handle/10635/82302 | ISSN: | 07413106 | DOI: | 10.1109/LED.2008.920277 |
Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
SCOPUSTM
Citations
43
checked on Jun 27, 2022
WEB OF SCIENCETM
Citations
38
checked on Jun 27, 2022
Page view(s)
184
checked on Jun 23, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.