Laser linewidth refers to the range of frequencies over which a laser emits light, essentially determining the spectral purity and coherence of the laser output. A narrow linewidth is crucial for applications requiring high precision, such as spectroscopy and telecommunications, as it allows for greater stability and less interference.

Laser Linewidth

Laser linewidth

range of frequencies

laser emits light

Spectral purity refers to the extent to which a signal or waveform is free from unwanted spectral components such as harmonics and spurious frequencies. It is crucial in applications like communication systems and signal processing to ensure accurate signal representation and minimize interference.

spectral purity

coherence of the laser output

narrow linewidth

High precision applications

Spectroscopy is a scientific technique used to analyze the interaction between matter and electromagnetic radiation to determine the composition, structure, and properties of substances. It is fundamental in fields like chemistry, physics, and astronomy for identifying materials and understanding molecular and atomic interactions.

spectroscopy

Telecommunications is the transmission of information over significant distances by electronic means, enabling communication between individuals, businesses, and governments across the globe. It encompasses a wide range of technologies, including telephones, radio, television, and the internet, playing a crucial role in modern society by facilitating instant communication and data exchange.

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