Microwave photonic filter with a continuously tunable central frequency using an SOI high-Q microdisk resonator  

作　　者：刘力 杨婷 董建绩 

机构地区：[1]Wuhan National Laboratory for Optoelectronics,School of Optoelectronic Science and Engineering,Huazhong University of Science and Technology

出　　处：《Chinese Physics B》2014年第9期165-169,共5页中国物理B（英文版）

基　　金：supported by the National Basic Research Program of China(Grant No.2011CB301704);the Program for New Century Excellent Talents in Ministry of Education of China(Grant No.NCET-11-0168);the Foundation for the Author of National Excellent Doctoral Dissertation of China(Grant No.201139);the National Natural Science Foundation of China(Grant Nos.60901006 and 11174096)

摘　　要：Utilizing a high-Q microdisk resonator （MDR） on a single silicon-on-insulator （SOI） chip, a compact microwave photonic filter （MPF） with a continuously tunable central frequency is proposed and experimentally demonstrated. Assisted by the optical single side-band （OSSB） modulation, the optical frequency response of the MDR is mapped to the microwave frequency response to form an MPF with a continuously tunable central frequency and a narrow 3-dB bandwidth. In the experiment, using an MDR with a compact size of 20×20 μm^2 and a high Q factor of 1.07×10^5, we obtain a compact MPF with a high rejection ratio of about 40 dB, a 3-dB bandwidth of about 2 GHz, and a frequency tuning range larger than 12 GHz. Our approach may allow the implementation of very compact, low-cost, low-consumption, and integrated notch MPF in a silicon chip.Utilizing a high-Q microdisk resonator （MDR） on a single silicon-on-insulator （SOI） chip, a compact microwave photonic filter （MPF） with a continuously tunable central frequency is proposed and experimentally demonstrated. Assisted by the optical single side-band （OSSB） modulation, the optical frequency response of the MDR is mapped to the microwave frequency response to form an MPF with a continuously tunable central frequency and a narrow 3-dB bandwidth. In the experiment, using an MDR with a compact size of 20×20 μm^2 and a high Q factor of 1.07×10^5, we obtain a compact MPF with a high rejection ratio of about 40 dB, a 3-dB bandwidth of about 2 GHz, and a frequency tuning range larger than 12 GHz. Our approach may allow the implementation of very compact, low-cost, low-consumption, and integrated notch MPF in a silicon chip.

关 键 词：microwave photonic filter （MPF） microdisk resonator （MDR） silicon-on-insulator （SOI） chip optical single side-band （OSSB） modulation 

分 类 号：TN713[电子电信—电路与系统]