Waveguides Fabricated in LiNbO3 by Proton Implantation

1991 ◽  
Vol 244 ◽  
Author(s):  
P. Moretti ◽  
P. Thevenard ◽  
K. Wirl ◽  
P. Hertel
Keyword(s):  
Refractive Index ◽  
Refractive Index Profile ◽  
Planar Waveguides ◽  
Optical Barrier ◽  
Dark Line ◽  
Wide Range ◽  
Ion Energies ◽  
Optical Planar Waveguides ◽  
Proton Implantation ◽  
Mode Spectroscopy

ABSTRACTOptical planar waveguides, with a controllable thickness in a very wide range, typically from 3 to 20 μm, can be fabricated by thermally controlled proton implantation in LiNbO3. In the nuclear stopping region at the end of the ion's tracks a sufficient decrease in refractive index is obtained, thus forming an adequate optical barrier. The mode confinement was investigated by dark line mode spectroscopy, and the refractive index profiles were reconstructed. The effects of different ion fluences and ion energies in the Mev range on the refractive index profile at 300 K have been investigated.

Er3+/Yb3+ co-doped phosphate glass waveguides formed by the H+ ion implantation

2020 ◽  
pp. 2150099
Author(s):  
He Pan ◽  
Shuo-Qi Lin ◽  
Li-Jie Shen ◽  
Rui-Lin Zheng ◽  
Li-Li Fu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Energy Loss ◽  
Phosphate Glass ◽  
Refractive Index Profile ◽  
Planar Waveguides ◽  
Optical Systems ◽  
Glass Waveguides ◽  
Integrated Optical ◽  
Proton Implantation ◽  
Co Doped

The 400 keV proton implantation with a fluence of [Formula: see text] ions/cm2 was applied on the [Formula: see text] co-doped phosphate glass to fabricate a planar waveguide structure. The mode profile at the end face of the waveguide was measured by the end-face coupling technique. The energy loss profile of the energetic protons was calculated by the SRIM 2013. The refractive index distribution was simulated by the reflectivity calculation method. Based on these results, the formation theory of the planar waveguides was discussed through simulating the energy loss distribution and analyzing the reconstructed refractive index profile, which could be used for applications in the future integrated optical systems.

Sm3+-doped bismuthate glasses and proton-implanted near-infrared waveguides

2019 ◽  
Vol 33 (04) ◽  
pp. 1950004 ◽  
Author(s):  
Jing-Yi Chen ◽  
He Pan ◽  
Liao-Lin Zhang ◽  
Hai-Tao Guo ◽  
Chun-Xiao Liu
Keyword(s):  
Refractive Index ◽  
Near Infrared ◽  
Near Field ◽  
Refractive Index Profile ◽  
Guided Mode ◽  
Proton Implantation ◽  
Glass Waveguide ◽  
Infrared Waveguides ◽  
Integrated Device ◽  
First Time

Sm[Formula: see text]-doped bismuthate glass has been synthesized by means of the classic melt-quenching technique. Its optical properties were characterized, which included refractive index, absorption and fluorescence spectra. The measured data suggest that the Sm[Formula: see text]-doped bismuthate glass is suitable for optoelectronic applications. A Sm[Formula: see text]-doped bismuthate glass waveguide operating at 1.539 [Formula: see text]m has been manufactured by using the proton implantation with a 0.4 MeV energy and a 8.0 × 10[Formula: see text] ions⋅cm[Formula: see text] fluence for the first time to our knowledge. The effective refractive indices of the propagation modes for the glass waveguide were obtained by the m-line technique. The energy loss caused by the collision of the irradiated protons and the nuclei of the target Sm[Formula: see text]-doped bismuthate glass was calculated by the SRIM 2013. The refractive index profile and the near-field guided mode distribution for the waveguide structure were fitted through the reflectivity calculation method (RCM) and the FD-BPM method, respectively. The proton-implanted Sm[Formula: see text]-doped bismuthate glass waveguide is an alternative for an integrated device in the telecommunication band.

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