What Is a Phase Modulator?
A phase modulator adjusts the phase of optical signals to encode information, crucial for optical communication and sensing.
This device modulates an optical signal by shifting the positions of its wave peaks and troughs, enabling precise and high-speed data transmission. The ability to finely control these shifts makes phase modulators ideal for fast communication and accurate measurements.
Among the various types, electro-optic modulators and optical waveguide modulators are prevalent. Electro-optic modulators use electrical signals to adjust light’s phase, whereas optical waveguide modulators achieve modulation within waveguides. These technologies are foundational in systems requiring rapid and efficient data exchange or meticulous sensing capabilities.