Demonstrations of centimeter-scale polymer resonator for resonant integrated optical gyroscope

In this paper, we demonstrate a centimeter-scale polymer resonator with propagation loss of 0.5 dB/cm to accomplish a significant step towards all-polymer resonant integrated optical gyroscope (RIOG) chip. The optical characteristics, resonance properties and the temperature dependence of the device are experimentally studied to establish basics for gyroscope application. The resonator shows a full width at half maximum (FWHM) of about 15 pm, a resonance depth of about 10 dB, and a quality factor of 1 × 105 in TE polarization, and can be used as the crucial sensing element of rate-grade RIOG.