Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6888331 | Optical Fiber Technology | 2018 | 7 Pages |
Abstract
We report a diode pumped self-frequency-doubled nonlinear crystalline waveguide on glass fiber. A ribbon fiber has been drawn on the glass composition of 50GeO2-25B2O3-25(La,Yb)2O3. Surface channel waveguides have been written on the surface of the ribbon fiber, using space-selective laser heating method with the assistance of a 244â¯nm CW UV laser. The Raman spectrum of the written area indicates that the waveguide is composed of structure-deformed nonlinear (La,Yb)BGeO5 crystal. The laser-induced surface wavy cracks have also been observed and the forming mechanism of the wavy cracks has been discussed. Efficient second harmonic generation has been observed from the laser-induced crystalline waveguide, using a 976â¯nm diode pump. 13â¯Î¼W of 488â¯nm output has been observed from a 17â¯mm long waveguide with 26.0â¯mW of launched diode pump power, corresponding to a normalized conversion efficiency of 4.4%Wâ1.
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Authors
Jindan Shi, Xian Feng,