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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dolgos, D. Meier, H. Schenk, A. Witzigmann, B. |
| Copyright Year | 2013 |
| Description | Author affiliation: Synopsys Switzerland LLC Zurich, Zurich, Switzerland (Dolgos, D.) || Integrated Syst. Lab., ETH Zurich, Zurich, Switzerland (Schenk, A.) || Albis Optoelectron. AG, Rüschlikon, Switzerland (Meier, H.) || Comput. Electron. & Photonics Group, Univ. of Kassel, Kassel, Germany (Witzigmann, B.) |
| Abstract | Single photon avalanche diodes (SPADs) enable a variety of innovative applications in the fields of biology, medicine, and physics. The propagation of single photons with optical fibers requires the usage of telecommunication wavelengths in the near infrared (NIR) spectral range. NIR SPADs, which can be employed for this application, consist of an absorber layer $(In_{0.53}Ga_{0.47}As)$ and a multiplication layer (InP or $In_{0.52}Al_{0.48}As).$ The product of the quantum efficiency $η_{q},$ the probability that the photoexcited carrier survives into the multiplier $P_{c},$ and the breakdown probability $P_{b}$ that the carrier activates a self-sustaining avalanche designate the photon detection efficiency [1] PDE = $η_{q}P_{c}P_{b}.$ The breakdown probability contributes primarily to the electric field dependence of the PDE and increases with the electric field. Therefore, a higher electric field enhances the photon detection efficiency. However, band-to-band or trap-assisted tunneling in the multiplication layer initiate dark counts and degrade the performance of SPAD devices at higher electric fields. Hence, to obtain a higher photon detection efficiency for a given increase of the electric field and tunneling rate, a steep rise of the breakdown probability with applied bias is favorable. The SPAD's timing jitter arises from various sources. The avalanche build-up time is the main contribution to the timing jitter [1]. |
| Starting Page | 360 |
| Ending Page | 361 |
| File Size | 75099 |
| Page Count | 2 |
| File Format | |
| e-ISBN | 9781457715075 |
| DOI | 10.1109/IPCon.2013.6656586 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-09-08 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Electric breakdown Photonics Physics Monte Carlo methods Indium phosphide Computational modeling Lead |
| Content Type | Text |
| Resource Type | Article |
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