Channel waveguides fabrication in Er3+-doped tellurite glass by ion beam irradiation

S. Berneschi; M. Brenci; G. Nunzi Conti; S. Pelli; G. C. Righini; I. Bányász; A. Watterich; N. Q. Khanh; M. Fried; F. Pászti

doi:10.1117/12.702085

2 March 2007 Channel waveguides fabrication in Er³⁺-doped tellurite glass by ion beam irradiation

S. Berneschi, M. Brenci, G. Nunzi Conti, S. Pelli, G. C. Righini, I. Bányász, A. Watterich, N. Q. Khanh, M. Fried, F. Pászti

Author Affiliations +

Proceedings Volume 6475, Integrated Optics: Devices, Materials, and Technologies XI; 647509 (2007) https://doi.org/10.1117/12.702085
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Tellurite glasses are known to be highly promising materials for broadening the amplification bandwidth of Er³⁺-doped waveguide amplifiers, as they have large stimulated emission cross sections and broad emission bandwidth around the 1.55 micron wavelength. Furthermore, they exhibit a wide transmission range, the lowest vibrational energy among oxide glass formers, and good non linear properties. Nevertheless fabrication of waveguides in tellurite glasses appears to be a challenging task and so far it has been reported only in a few papers. Here we report on the development of a method based on high-energy ion beam irradiation to create active channel waveguides in a tungsten-tellurite glass doped with Er₂O₃. The waveguide stripes have been realized by 1.5 MeV N⁺ irradiation of the glass sample through a silicon mask with doses of 1.0 x 10¹⁶ ions/cm² using a 5 MeV Van de Graaff accelerator. Multimode light propagation has indeed been observed in these channels, confirming the effectiveness of this technique.

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S. Berneschi, M. Brenci, G. Nunzi Conti, S. Pelli, G. C. Righini, I. Bányász, A. Watterich, N. Q. Khanh, M. Fried, and F. Pászti "Channel waveguides fabrication in Er³⁺-doped tellurite glass by ion beam irradiation", Proc. SPIE 6475, Integrated Optics: Devices, Materials, and Technologies XI, 647509 (2 March 2007); https://doi.org/10.1117/12.702085

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