Russian scientists have introduced a new miniature fiber-optic temperature sensor based on a Fabry–Pérot interferometer located at the tip of an optical fiber. The sensor demonstrates a sensitivity of up to 10 pm/°C, which is an order of magnitude higher than that of traditional fiber-optic sensors. The development utilizes a photopolymer material, and its manufacturing process is noted for its simplicity and cost-effectiveness.
One of the technology's creators, Dr. Airat Sakhabutdinov, remarked: "This sensor opens up new possibilities in fields such as medicine and biology. Its miniature size and high precision make it possible to address temperature control challenges that were previously unattainable."
Additionally, the scientists developed a microwave photonic method for reading the sensor’s data, which eliminates the need for an optical spectrum analyzer. This innovation has reduced the cost of the measurement system, making it more accessible for widespread use. The sensor’s operating temperature range spans from -20°C to +80°C, and its durability exceeds 10,000 heating and cooling cycles.
The technology has already attracted interest from medical research centers and high-tech companies, highlighting its potential for further practical implementation.
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