Title :
Flat-top steep-edge photodetector with cascaded grating structure
Author :
Zhang, Xu ; Huang, Yongqing ; Ren, Xiaomin ; Huang, Hui ; Wang, Qi
Author_Institution :
Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing University of Posts and Telecommunications, 100876, China
Abstract :
New type of photodetector with cascaded waveguide grating filters as bottom reflection mirror is proposed. Compared with traditional photodetector with distributed Bragg reflectors (DBRs), this new type of photodetector require significantly fewer layer for narrow flat-top response, high peak efficiency and low sideband reflectance.
Keywords :
Distributed Bragg reflectors; Fluctuations; Gratings; Mirrors; Optical fiber communication; Optical reflection; Optical refraction; Optical waveguides; Photodetectors; Resonance;
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
