Application of high birefringence fiber Sagnac loop mirror in temperature sensing

摘要

Experiments using high birefringence fiber Sagnac loop mirror as the temperature sensor are reported. We study the characteristics of this sensor based on intensity detection. The result is linear in the measurable range. The sensing sensitivities of temperature is 0.92nm/°C, which is nearly 89 times larger than the typical temperature sensitivities of fiber Bragg grating.