Journal article
Raman probes based on optically-poled double-clad fiber and coupler
Two fiber Raman probes are presented, one based on an optically-poled double-clad fiber and the second based on an optically-poled double-clad fiber coupler respectively. Optical poling of the core of the fiber allows for the generation of enough 532nm light to perform Raman spectroscopy of a sample of dimethyl sulfoxide (DMSO), when illuminating the waveguide with 1064nm laser light.
The Raman signal is collected in the inner cladding, from which it is retrieved with either a bulk dichroic mirror or a double-clad fiber coupler. The coupler allows for a substantial reduction of the fiber spectral background signal conveyed to the spectrometer.
Language: | English |
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Year: | 2012 |
Pages: | 28563-28572 |
ISSN: | 10944087 |
Types: | Journal article |
DOI: | 10.1364/OE.20.028563 |
ORCIDs: | Rottwitt, Karsten |