Figure 5 | Scientific Reports

Figure 5

From: Efficient Second Harmonic Generation in 3D Nonlinear Optical-Lattice-Like Cladding Waveguide Splitters by Femtosecond Laser Inscription

Figure 5

SHG Experiment of optical-lattice-like cladding waveguides in KTP (a) Schematic of experimental arrangement for second-harmonic-generation in KTP optical-lattice-like cladding waveguides. The spectra of (b) the fundamental laser beam at ~1064 nm and (c) the SHG at ~532 nm transmitted through femtosecond-laser inscribed KTP optical-lattice-like cladding waveguides.

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