Journal
INFRARED PHYSICS & TECHNOLOGY
Volume 113, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.infrared.2020.103578
Keywords
Two-dimensional waveguide; Nd3+-doped phosphate glass; Proton implantation; Femtosecond laser ablation
Categories
Funding
- National Natural Science Foundation of China [11405041, 61905119]
- University Natural Science Research Project of Jiangsu Province [19KJB140013]
- NUPTSF [NY219101]
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This work presents a concise investigation on the formation of infrared two-dimensional waveguides in Nd3+-doped phosphate glass using proton implantation and femtosecond laser ablation techniques. The guiding characteristics of the fabricated waveguides were observed and measured through an optical microscope and end-face coupling technique. The results demonstrate the successful fabrication of a 2D waveguide operating at 976 nm in Nd3+-doped phosphate glass, showcasing the potential for versatile and flexible 2D photonic devices.
The work reports on a concise investigation on the application of the proton implantation and the femtosecond laser ablation for the infrared two-dimensional waveguide formation in the Nd3+-doped phosphate glass. The Nd3+-doped phosphate glass was firstly irradiated by the 400-keVprotons with a fluence of 8.0 x 10(16) ions/cm(2) and then ablated by the femtosecond laser with 800-nm central wavelength, 1.0-kHz repetition rate and 120-fs pulse duration. The optical microscope image of the end-face was captured by an optical microscope for the implanted and ablated Nd3+-doped phosphate glass. The intervals between two neighbor grooves was 30 mu m. The guiding characteristics of the 2D waveguide were measured by the end-face coupling technique. The results suggest that a 2D waveguide operating at 976 nm is fabricated in the Nd3+-doped phosphate glass. The hybrid fabrication technique opens a versatile and flexible way toward 2D photonic devices in the Nd3+-doped phosphate glass.
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