Ultrawide-band silicon microring avalanche photodiode with linear photocurrent-wavelength response  

作　　者：YANG REN VIEN VAN 

机构地区：[1]Department of Electrical and Computer Engineering,University of Alberta,Edmonton,Alberta T6G 2W3,Canada

出　　处：《Photonics Research》2021年第11期2303-2308,共6页光子学研究（英文版）

基　　金：Natural Sciences and Engineering Research Council of Canada。

摘　　要：We report a CMOS-compatible silicon microring-enhanced avalanche photodiode based on linear defect-state absorption in a p^(+)pn^(+) junction,with high responsivities exceeding 1 A/W at telecommunication wavelengths.The large photogenerated currents give rise to giant thermo-optic nonlinearity in the microring resonator,resulting in a linear photocurrent-wavelength response spanning the full free spectral range of the microring.This unique photocurrent spectrum could enable novel applications in wavelength-resolved photodetection,such as compact on-chip spectrometers,linear chirp frequency laser source characterization,and low-cost refractometric sensors without requiring precise wavelength-tunable lasers.

关 键 词：MICRORING AVALANCHE RESONATOR 

分 类 号：TN312.7[电子电信—物理电子学]