Evolution beyond resonant-cavity-enhanced photodetectors

Xiaomin Ren; Hui Huang; Yongqing Huang

doi:10.1117/12.529555

12 May 2004 Evolution beyond resonant-cavity-enhanced photodetectors

Xiaomin Ren, Hui Huang, Yongqing Huang

Proceedings Volume 5280, Materials, Active Devices, and Optical Amplifiers; (2004) https://doi.org/10.1117/12.529555
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

The RCE photodetectors have evolved rapidly and been succeeded by a new variety of devices, i.e. the integrated OWDM tunable demultiplexing and detection unit. The concepts, device structure and operation principles differ to some extent from the original RCE photodetectors. As a good example, One-Mirror-Inclined Three-Mirror-Cavity (OMITMiC) photodetector, which combines a Fabry-Perot filtering-cavity with a taper absorption-cavity, features high-speed, high quantum efficiency and ultra-narrow spectral linewidth simultaneously and allows wide range tuning when proper tuning mechanism is introduced. First fabrication and demonstration of this kind of device on GaAs substrate had been done in our laboratory. A quantum efficiency of 75% and a spectral linewidth of 0.8nm (FWHM) were achieved with an absorption layer as thin as 0.119μm. Relevant micromechanical tunable Fabry-Perot filter with a tuning range about 30nm had been achieved. Research works on the key technologies to transfer our success to InP based long wavelength device are also presented.

Citation Download Citation

Xiaomin Ren, Hui Huang, and Yongqing Huang "Evolution beyond resonant-cavity-enhanced photodetectors", Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); https://doi.org/10.1117/12.529555

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