- Study on a tunable radio frequency filter based on integrated optical waveguide
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- 论文类型： 期刊论文
- 发表时间： 2013-10-01
- 发表刊物： Guangxue Xuebao/Acta Optica Sinica
- 收录刊物： EI、PKU、ISTIC、Scopus
- 卷号： 33
- 期号： 10
- ISSN号： 02532239
- 摘要： A new tunable microwave photonic filter combining optical waveguide micro-ring resonator and Mach-Zehnder interferometer (MZI) is proposed to realize single sideband filtering. The influences of the filter structural parameters, such as coupling coefficient r, round-trip loss 1 and additional phase shift 1, etc., on the filtering response are investigated. The result shows that there is a tradeoff between the rectangle shape and extinction ratio. According to the polymer polysilsesquioxane-liquid (PSQ-L) waveguide, a microwave photonic filter with rectangle shape factor of 0.8 and extinction ratio of 32 dB is designed, and the tunable radio frequency single sideband filtering from 8 GHz to 69 GHz can be achieved with the thermal-optic phase shifters.
