What is a Optical modulator?

An optical modulator is a device that alters the characteristics of light signals (such as intensity, phase, frequency, or polarization). This modulation allows data or information to be encoded into optical signals. Optical modulators are primarily used in fiber optic communications and laser technologies, enabling high-speed, long-distance data transmission. Modulation techniques include intensity modulation (IM), phase modulation (PM), and polarization modulation (PolM). They are utilized not only in communications but also in optical sensors, medical devices, and laser process control.

Application of Optical modulator

✅Fiber Optic Communications
Modulating light signals to transmit large amounts of data over long distances at high speeds.
✅Laser Interferometry
Controlling interference patterns via light modulation for precise measurement of small displacements or positions.
✅Medical Optical Devices
Using phase or intensity modulation for surgical lasers and diagnostic equipment.
✅Optical Sensors
Leveraging light modulation to sensitively detect physical quantities like gas concentrations or temperatures.

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