Abstract
Lasing in dynamic-distributed-feedback (DDFB) laser on the basis of a modified sol-gel matrix activated with Rhodamine 4C is reported. The lasing is achieved in the range of 590 nm with a wavelength tuning of about 20 nm. The slope efficiency of the sol-gel DDFB laser excited by the second harmonic radiation of a YAG:Nd3+ laser with a pulse duration of 40 ns is 16.5% at a lasing wavelength of 593 nm. The DDFB laser is also characterized by a threshold pumping energy of ∼ 90 μJ and a pumping energy density up to 40 mJ/cm2. The typical spectral width of the laser line is 0.025 nm.
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Balenko, V.G., Vitukhnovskii, A.G., Drobysh, A.I. et al. A Compact Sol-Gel Laser with Dynamic Distributed Feedback. Journal of Russian Laser Research 24, 399–401 (2003). https://doi.org/10.1023/A:1025859424752
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DOI: https://doi.org/10.1023/A:1025859424752