Improved efficiency-bandwidth product of modified uni-traveling carrier photodiode structures using an undoped photo-absorption layer

Dong Hwan Jun, Jae Hyung Jang, Ilesanmi Adesida, Jong In Song

Research output: Contribution to journalArticlepeer-review

Abstract

Effects of undoped photo-absorption layers in modified uni-traveling carrier photodiode structures on quantum efficiency and bandwidth are reported. Modified uni-traveling carrier photodiode structures having different undoped photo-absorption layer thicknesses were fabricated and characterized. Efficiency and bandwidth of photodiodes having an optimized undoped photo-absorption layer were larger than those of photodiodes without such a layer, which agrees well with the theoretical analysis of the dynamic behavior of the photodiodes using drift-diffusion model. The results indicate that both the quantum efficiency and bandwidth of the uni-traveling carrier photodiode structures can be extended by incorporating an optimized thickness of undoped photo-absorption layer.

Original languageEnglish (US)
Pages (from-to)3475-3478
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number4 B
DOIs
StatePublished - Apr 25 2006

Keywords

  • Efficiency-bandwidth product
  • Pin photodiode
  • Uni-traveling carrier photodiode

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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