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Programmable light source based on an echellogram of a supercontinuum laser

 
: Luo, D.; Taphanel, M.; Längle, Thomas; Beyerer, Jürgen

:

Applied optics 56 (2017), Nr.8, S.2359-2367
ISSN: 0003-6935
ISSN: 1539-4522
ISSN: 1559-128X
Englisch
Zeitschriftenaufsatz
Fraunhofer IOSB ()

Abstract
Illumination systems with tunable spectrums have been receiving an increasing amount of attention due to their wide application and unique capability. This paper proposes a programmable light source in the visible range based on the combination of a prism and an echelle grating. A supercontinuum laser is utilized as the primary source, whose echellogram is projected to a digital mirror device for wavelength selection. A complete calibration procedure is developed to generate any target spectrum of choice. Experiments have shown that spectral peaks with a full width at half-maximum of 1 nm can be easily generated and the wavelength tuning resolution can reach as small as 0.01 nm.

: http://publica.fraunhofer.de/dokumente/N-461415.html