Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2014-10-15

Journal: JOURNAL OF LIGHTWAVE TECHNOLOGY

Included Journals: Scopus、EI、SCIE

Volume: 32

Issue: 20,SI

Page Number: 3924-3932

ISSN: 0733-8724

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

Abstract: 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.