Wavelength Control overview

Wavelength Control

Wavelength control is the capability to select and attenuate individual wavelengths. Specific wavelengths can then be analyzed in a spectrometer or filtered in an optical add-drop multiplexer, two of the most common applications.

With DLP technology, a dispersive optical element is used to spread an input light source into spatially separated wavelengths on the surface of the DMD chip. The number of mirrors turned on/off on each column of the DMD is used to select and attenuate the corresponding wavelength. This results in flexible and robust systems that are efficient across a large segment of the electromagnetic spectrum.

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DLP features and benefits

DLP feature Customer benefit
Program "scanned lines", "matched filtering", or "coded filtering" Single, flexible spectral engine for analyzing multiple materials
Digital MEMS spatial light modulator with over 30 million devices sold Eliminates fragile, temperature-sensitive, and expensive components. Allows design of compact, robust systems
Polarization independent aluminum micromirrors Eliminates fragile, temperature-sensitive, and expensive components. Allows design of compact, robust systems

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