General Description of Light Sources


Light sources are needed for transmission, absorption and reflection spectroscopic setups. To couple, the light conveniently with the fiber optic bundles, bundles and probes it is essential to collect the light and couple it through SMA-905 connectors.

There are different light sources like Tungsten-Halogen light source, Deuterium-Halogen Light Source, LED, Mercury-Argon etc that have different application and wavelength ranges.
Tungsten-halogen light source provides stable output and is used in the visible range to do color measurements. Halogen light provides stable output and its life depends on the color and temperature of the bulb. The high stability of halogen light source makes it suitable for the use as a color reflection illumination source and as an irradiance calibration light source.

Deuterium light source is found in combination with halogen and is called Deuterium-Halogen Light Source. It provides a stable output and is used in UV-absorption or reflection measurement. It is also used as an irradiance calibration source.
Pulsed Xenon light source is highly used in the application where the stable output is not much in demand.

LED coupled with fiber optics is used when a high power small wavelength range illumination is needed. LED light has features like a long lifetime, short warm-up time and high stability.

Kewlab offers a source for wavelength calibration with the combination of halogen and deuterium. DLS-1 the most common light source uses an SMA-905 optical fiber connector for connecting optical fiber or fiber bundle.



Location: Australia

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