For applications in analytics or sensing, a plasma-based laser-driven light source has been introduced as an alternative to D2-lamps. However, the UV-defect concentration after 4 hours was found to be lower despite significantly higher spectral power density. Annealing effects due to VIS- and IR-light portion of the new lamp may have to be taken into account.
For the first time, we are concentrating on the short-term (< 20 min) effects of UV damaging in different UV-fibers due to different spectra; especially light power above 400 nm will be blocked or at least significantly reduced. In addition, the long-term behavior with both lamps and the effect on fiber core diameter is presented.