Abstract
In this paper, we propose a small-diameter polarization-maintaining solid-core photonic crystal fiber. The coating diameter, cladding diameter and other key parameters relating to the thermal properties were studied. Based on the optimized parameters, a fiber with a Shupe constant 15% lower than commercial photonic crystal fibers (PCFs) was fabricated, and the transmission loss was lower than 2 dB/km. The superior thermal stability of our fiber design was proven through both simulation and measurement. Using the small-diameter fiber, a split high precision fiber optic gyro (FOG) prototype was fabricated. The bias stability of the FOG was 0.0023 °/h, the random walk was 0.0003 °/, and the scale factor error was less than 1 ppm. Throughout a temperature variation ranging from −40 to 60 °C, the bias stability was less than 0.02 °/h without temperature compensation which is notably better than FOG with panda fiber. As a result, the PCF FOG is a promising choice for high precision FOG applications.
Highlights
Photonic crystal fibers (PCFs) are fibers with a periodic transverse microstructure [1]
Throughout a temperature variation ranging from −40 to 60 ◦ C, the bias stability was less than 0.02 ◦ /h without temperature compensation which is notably better than fiber optic gyro (FOG) with panda fiber
The PCF FOG is a promising choice for high precision FOG applications
Summary
Photonic crystal fibers (PCFs) are fibers with a periodic transverse microstructure [1]. PCFs can be designed to have a small core to increase the nonlinear effects [8] These characteristics make solid-core PCF an appropriate choice for fiber optic gyros (FOGs). We derived an optimized structure which has a reduced constant Based on this design, we fabricated a small-diameter PM-PCF, and the Shupe coefficient of. Based on this design, we fabricated a small-diameter PM-PCF, and the Shupe both the optimized PM-PCF and other commercial PM-PCFs were measured and compared. Based on coefficient of both the optimized PM-PCF and other commercial PM-PCFs were measured and the thermally optimized PM-PCF, a high precision FOG prototype was fabricated. Based on the thermally optimized PM-PCF, a high precision FOG prototype was thermal stability and scale factor stability were tested. The bias stability, thermal stability and scale factor stability were tested
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