The Optical and Fluorescence Properties of Planar and Channel Waveguides in Laser Crystal Nd:SrGdGa $_{3}$O $_{7}$ Formed by Carbon Ion Implantation

The planar and channel waveguides were fabricated by C ion implantation on Nd:SrGdGa
₃
O
₇
crystal respectively. The guided modes and optical propagation properties were investigated by waveguide coupling method, and the simulation of the light propagation process was performed simultaneously for comparison. The propagation losses of planar and channel waveguides were 0.84 dB/cm and 0.5 dB/cm, respectively, which were measured by end-face coupling equipment. The confocal microfluorescence investigation was used to observe the influence of the C ion implantation process on the Nd ions properties. It shows that there are merits about the relative low loss and the good reservation of Nd ions fluorescence properties in the C-ion-implanted waveguide. Thus, this waveguide could be a very promising candidate for integrated optical device.