A GaAs-Based MOEMS Tunable RCE Photodetector with Single Cantilever Beam

A GaAs-based micro-opto-electro-mech anical-systems(MOEMS) tunable resonant cavity enhanced(RCE)photodetector with a continuous tuning range of 31nm under a 6V tuning voltage is demonstrated. The single cantilever beam structure is adopted for this MOEMS tunable RCE photodetector. The maximum and minimum peak quantum efficiency during the tuning are 36.9 % and 30. 8 %, respectively. The maximum and minimum full-width-at-halfmaximum (FWHM) are 20nm and 14nm,respectively. The dark current density is 7.46A/m2 without bias.

A GaAs-based micro-opto-electro-mech anical-systems(MOEMS) tunable resonant cavity enhanced(RCE)photodetector with a continuous tuning range of 31nm under a 6V tuning voltage is demonstrated. The single cantilever beam structure is adopted for this MOEMS tunable RCE photodetector. The maximum and minimum peak quantum efficiency during the tuning are 36.9 % and 30. 8 %, respectively. The maximum and minimum full-width-at-halfmaximum (FWHM) are 20nm and 14nm,respectively. The dark current density is 7.46A/m2 without bias.

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国家重点基础研究发展计划资助项目

Optical Communication Center, School of Telecommunication Engineering, Beijing University of Posts and Telecommunications;Institute of Semiconductors,Chinese Academy of Sciences

国家重点基础研究发展计划资助项目