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Active waveguide in Nd3+:MgO:LiNbO3 crystal produced by low-dose carbon ion implantation

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6 Author(s)
Chen, Feng ; School of Physics and Microelectronics, Shandong University, 250100 Jinan, People’s Republic of China ; Tan, Yang ; Jaque, D. ; Wang, Lei
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We report on Nd3+:MgO:LiNbO3 active planar waveguides produced by 3 MeV carbon ion implantation at dose of 7.5×1014 cm-2. The extraordinary refractive index of the sample surface experiences positive alternations after the implantation and subsequent thermal annealing treatment, constructing enhanced-well confined waveguide structures. The propagation loss of the waveguide is 1–2 dB/cm, which means acceptable quality for further guide-wave applications. The microluminescence spectra of the waveguide show fairly good potentials for laser action at 929 and 1085 nm.

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Applied Physics Letters  (Volume:92 ,  Issue: 2 )