Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 39, Issue 11, Pages 3591-3598Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2021.3068265
Keywords
Integrated circuit modeling; Digital alloys; Monte Carlo methods; Computational modeling; Avalanche photodiodes; Data models; Scattering; SPICE; digital alloy; low noise
Funding
- National Science Foundation [NSF 1936016]
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III-V material based APDs have been found to have low noise levels similar to Silicon APDs, and can operate at any wavelength in the infrared spectrum. A physics-based SPICE compatible compact model has been developed to accurately capture the physical characteristics of these APDs in integrated photonics circuit simulations, using parameters extracted from an EDTB model calibrated to DFT and MC methods.
III-V material based digital alloy Avalanche Photodiodes (APDs) have recently been found to exhibit low noise similar to Silicon APDs. The III-V materials can be chosen to operate at any wavelength in the infrared spectrum. In this work, we present a physics-based SPICE compatible compact model for APDs built from parameters extracted from an Environment-Dependent Tight Binding (EDTB) model calibrated to ab-initio Density Functional Theory (DFT) and Monte Carlo (MC) methods. Using this approach, we can accurately capture the physical characteristics of these APDs in integrated photonics circuit simulations.
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