Abstract
Waveguide ring resonator is the sensing element of resonant integrated optical gyroscope (RIOG). This paper reports a polymer‐based ring resonator with a low propagation loss of about 0.476 dB/cm for RIOG. The geometrical parameters of the waveguide and the coupler of the resonator were optimally designed. We also discussed the optical properties and gyroscope performance of the polymer resonator which shows a high quality factor of about 105. The polymer‐based RIOG exhibits a limited sensitivity of less than 20 deg/h for the low and medium resolution navigation systems.
Highlights
Resonant integrated optical gyroscope (RIOG) is a high performance rotation sensor based on the Sagnac effect, in which an optical waveguide ring resonator is utilized as the sensing element [1,2,3]
The polymer-based optical ring resonators have become the focus of research due to their good optical characteristics [11] and have been widely used in integrated optical devices such as modulators [12,13,14], filters [15, 16], sensors [17], and optical communication systems [18]
The polymer-based resonator used in RIOG requires a much larger diameter and a lower propagation loss because the performance of gyroscope mainly depends on the enclosed area and the propagation loss of the waveguide resonator [3, 19]
Summary
Resonant integrated optical gyroscope (RIOG) is a high performance rotation sensor based on the Sagnac effect, in which an optical waveguide ring resonator is utilized as the sensing element [1,2,3]. The polymer-based optical ring resonators have become the focus of research due to their good optical characteristics [11] and have been widely used in integrated optical devices such as modulators [12,13,14], filters [15, 16], sensors [17], and optical communication systems [18]. These applied polymer ring resonators are not suitable for the sensing elements of RIOGs due to the characteristics of small diameter and high propagation loss. We optimally designed the coupler and analyzed the optical properties and corresponding RIOG performance of the polymer-based resonator
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