Research and application of biosensors based on tilted fiber Bragg gratings

Fiber sensors based on fiber Bragg gratings (FBG), due to their unique characteristics such as compact size, multiplexing capability, chemical resistance and resistance to electromagnetic fields, have found extensive applications – from monitoring the condition of structures to use in biomedical devices and medical care systems. These sensors are also characterized by high linearity, fast response for real-time monitoring, and increased sensitivity to external influences. These features make fiber sensors extremely attractive for a variety of applications, especially in the field of biomedicine. Fiber sensors based on Tilted fiber Bragg gratings (TFBG) are particularly attractive. TFBG are excellent biosensors used for medical research and diagnostics. These gratings have unique properties that make it possible to create high-precision sensors for biochemical analysis at minimal cost of production and operation. Due to their multi-resonance characteristics, TFBG enable multiparameter sensing and address cross-sensitivity challenges, including temperature sensitivity. TFBG allow you to eliminate cross-sensitivity and measure multiple parameters simultaneously. The article provides a brief overview of the main characteristics, principles of operation, methods of collecting and processing data from sensors, as well as their application in medical equipment and devices.