Abstract:
Diffused planar waveguides were formed in a potassium titanyl phosphate (KTP) crystal by ion exchange with molten RbNO3. The optical strength was determined at the wavelengths of 0.488 and 0.514 μm. The cost of Rb:KTP waveguides was at least two orders of magnitude less than planar Ti:LiNbO3 waveguides.