Introduction to Fiber Sagnac

The sensor configuration is based on the combination of the Vernier effect of a single fiber Sagnac loop and the isopropanol sensitive material of polypyrrole, which swells in corresponding to the change of isopropanol concentration.

Here, we develop an all-fiber Sagnac interferometer device based on suspended-core fiber, which can be excellent candidates for physical or biochemical sensors.

In this paper, a gas refractometer based on microfiber Sagnac interferometer is demonstrated, which can achieve an ultrahigh sensitivity when operating at the group birefringence turning point.

Improving the phase sensitivity of the optical fiber Sagnac sensor is very important for accurately detecting weak signals of acoustic emission.

In this paper, a single-fiber Sagnac-like interferometer is proposed and experimentally demonstrated for detecting atomic spin precession in an atomic magnetometer.

We have proposed and experimentally demonstrated a compact temperature sensor based on cascaded fiber Sagnac interferometer (FSI) and fiber Fabry–Perot interferometer (FFPI) with Vernier effect.

We use self-compensating fiber Sagnac interferometers to perform high-speed polarization modulation, and q-plates to passively manipulate the rotation-invariant photon states, which makes the system feasible for high-speed operation using off-the-shelf components.

In this paper, we have reported a comparative study of Optical Fiber Sagnac Interferometer (OFSI) based strain sensors using three different types of fiber, i.

Here, we develop an all-fiber Sagnac interferometer device based on suspended-core fiber, which can be excellent candidates for physical or biochemical sensors.