Silicon substrates with buried distributed Bragg reflectors for resonant cavity-enhanced optoelectronics
Silicon substrates with buried distributed Bragg reflectors for resonant cavity-enhanced optoelectronics
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DOI:
10.1109/jstqe.2002.801692
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发表时间:
2002-07-01
影响因子:
4.9
通讯作者:
Ünlü, MS
中科院分区:
文献类型:
--
作者:
Emsley, MK;Dosunmu, O;Ünlü, MS
We report on a commercially reproducible silicon wafer with a high-reflectance buried distributed Bragg reflector (DBR). The substrate consists of a two-period DBR fabricated using a double silicon-on-insulator (SOI) process. The buried DBR provides a 90% reflecting surface. We have fabricated resonant cavity-enhanced Si photodetectors with 40% quantum efficiency at 860 nm and a full-width at half-maximum of 29 ps suitable for 10 Gbps data communications. We have also implemented double-SOI substrates with 90% reflectivity covering 1300 and 1550 nm for use in Si-based optoelectronics.