Waveguiding properties in Yb:YAG crystals implanted with protons and carbon ions

Area of Science:

• Materials Science
• Optics
• Solid-State Physics

Background:

• Ytterbium-doped Yttrium Aluminum Garnet (Yb:YAG) is a key material for solid-state lasers.
• Integrated optics requires miniaturized optical components with high performance.
• Ion implantation is a versatile technique for modifying material properties.

Purpose of the Study:

• To fabricate and analyze optical waveguides in Yb:YAG crystals.
• To investigate the feasibility of using ion implantation for creating integrated optical devices.
• To assess the impact of ion implantation on the spectroscopic properties of Yb ions in YAG.

Main Methods:

• Fabrication of planar and channel waveguides using proton and carbon ion implantation.
• Definition of channel waveguides using electroformed masks with varying aperture sizes (10, 15, 20 micrometers).
• Analysis of waveguiding properties through transversal mode distribution and optical transmission measurements.
• Spectroscopic analysis of Yb ions in the YAG host post-implantation.

Main Results:

• Successful fabrication of both planar and channel optical waveguides in Yb:YAG.
• Demonstrated good light confinement in the fabricated waveguides.
• Preservation of the spectroscopic properties of Yb ions after ion implantation.
• Yb:YAG waveguides exhibit potential for integrated optics applications.

Conclusions:

• Ion implantation is an effective method for creating optical waveguides in Yb:YAG crystals.
• The fabricated Yb:YAG waveguides maintain the essential optical and spectroscopic properties for laser applications.
• This technique offers a pathway for developing advanced microcomponents for integrated optics and miniature laser systems.