Measuring device for wavelengths of narrow-band light source - contains spectral separation device, and measures deflection of components of light with positionally sensitive continuous detector

摘要

The arrangement contains a refractive/dispersive device for spectral division of the light from the light source. The deflection of the components of the light is measured with a position sensitive continuous detector. The centre of density of the spectral intensity profile of the narrow-band light source is derived from the deflection measurements. USE/ADVANTAGE - For determining emission wavelengths of spectrally narrowband light sources eg laser. High accuracy over large spectral region, for monitoring and test purposes with high sensitivity and operating reliability.