Micro photonic chip is a kind of microchip based on the principle of photonics, which uses the characteristics of photons to transmit and process information. In recent research, scientists have successfully transformed micro photonic chips into temperature sensors, which have the advantages of high sensitivity, fast response and small size. This technology is expected to be widely used in many fields, including industrial control, medical diagnosis and environmental monitoring.
In order to turn a micro photonic chip into a temperature sensor, researchers first need to ATMEGA48PA-PU A temperature sensor is integrated on the chip. Common temperature sensing elements include thermistor, thermistor capacitor and thermistor light-emitting diode. The electrical characteristics of these components will change with the temperature change, so the temperature change can be inferred by measuring its electrical signal.
However, because the micro photonic chip is based on the principle of photonics, researchers need to convert electrical signals into optical signals in order to interact with the photonic chip. To this end, they used a photoelectric converter to convert the electrical signal of the temperature sensor into an optical signal. Photoelectric converters are usually composed of photodiodes or photoresistors, which can convert optical signals into electrical signals or vice versa.
Once the electrical signal is converted into an optical signal, researchers can input it into a micro photonic chip for processing and analysis. In photonic chips, optical signals are transmitted through optical waveguides, and interference, coupling and amplification occur in different optical devices. By measuring the transmission characteristics of the optical signal inside the chip, researchers can obtain the electrical characteristics of the temperature sensor and further infer the temperature change.
Compared with traditional temperature sensors, micro photonic chips have many advantages. First of all, its size is very small, which can be easily integrated into micro devices or chips to achieve temperature monitoring of small areas. Secondly, the photonic chip has the characteristics of high sensitivity and fast response, which can monitor the temperature change in real time, and is particularly suitable for applications requiring high precision and speed. In addition, the photonic chip also has the ability to resist electromagnetic interference and high temperature, which is suitable for temperature monitoring in harsh environments.
At present, the application field of micro photonic chip temperature sensor is expanding. In terms of industrial control, it can be used to monitor the temperature of machinery and equipment to achieve automatic control and fault warning. In medical diagnosis, it can be used to monitor the body temperature and help doctors screen and treat diseases. In terms of environmental monitoring, it can be used to monitor air, water quality and soil temperature to provide data support for environmental protection.
Although micro photonic chip temperature sensors have many advantages, there are still some challenges and limitations. First, the manufacturing and integration costs of photonic chips are high, requiring complex processes and equipment. Secondly, due to the limited transmission distance of the optical signal in the optical waveguide, the measurement range of the photonic chip is relatively small. In addition, the temperature sensor of the photonic chip also needs to be calibrated and compensated to improve its accuracy and stability.
In summary, researchers have successfully transformed micro photonic chips into powerful temperature sensors, which have the advantages of high sensitivity, fast response and small size. This technology is expected to be widely used in industrial control, medical diagnosis, environmental monitoring and other fields. However, further research and development are still needed to address the challenges of manufacturing costs, measurement range and accuracy.
