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论文类型：期刊论文

发表时间：2014-10-15

发表刊物：JOURNAL OF LIGHTWAVE TECHNOLOGY

收录刊物：SCIE、EI、Scopus

卷号：32

期号：20,SI

页面范围：3924-3932

ISSN号：0733-8724

关键字：Microwave photonics; notch filter; polymer waveguide; ring resonator; tunable coupler; UV-soft imprint

摘要：A tunable polymer waveguide ring resonator is proposed and demonstrated for microwave photonic filtering. The ring resonator consists of a Mach-Zehnder interferometer (MZI) as the tunable coupler and two micro-heaters as the thermo-optic phase shifters. It was fabricated with inorganic-organic hybrid optical material polysiloxane-liquid series by a novel and simple UV-soft selective imprint technique. The coupling conditions, over-, critical- and under-coupling, were obtained with the micro-heater on the arm of MZI and the maximum notch depth of about 18 dB was achieved. The resonant wavelength was also tuned with the micro-heater on the ring waveguide. The dispersion induced power fading of radio over fiber link was overcome by the tunable ring resonator with its notch filtering function.