Title :
Design and fabrication of multichannel tunable photodetector array
Author :
Duan, Xiaofeng ; Huang, Yongqing ; Ren, Xiaomin ; Huang, Hui ; Wang, Song ; Song Wang ; Shang, Yufeng ; Ye, Xian ; Cai, Shiwei
Author_Institution :
Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications), Ministry of Education, P.O. Box 66 (BUPT), China 100876
Abstract :
A long wavelength multichannel tunable photodetector array was fabricated based on multistep Fabry-Pérot filter by using the heteroepitaxy growth of InP-In0.53Ga0.47As-InP PIN structure on a GaAs based GaAs/AlAs Fabry-Pérot filter structure. High quality heteroepitaxy was realized by employing a thin low temperature buffer layer. The array can detect multiple channels, and the tuning range of each detector is about 10nm. A spectral linewidth of 0.5nm, a quantum efficiency over 25%, and a 3dB bandwidth of 9.2GHz were simultaneously obtained.
Keywords :
Bandwidth; Detectors; Fabrication; Gallium arsenide; Optical attenuators; Optical filters; Optical receivers; Optical resonators; Photodetectors; Photonics; Tunable photodetector; multiwavelength receiving; resonator cavity;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
