Borate glasses present the ability to host various modifier ions and, therefore, are adaptable for a wide range of applications. Specifically, calcium-lithium tetraborate (CaLiBO) glasses doped with rare earths have been investigated for applications involving energy transfer processes. In this work, waveguides were inscribed by femtosecond laser microfabrication in CaLiBO glasses containing Tb³⁺ and Yb³⁺ ions, displaying emission in the green region. Single-mode guiding at 632.8 nm, with propagation losses of approximately 2.0 dB/cm, was obtained in 7.0-mm long waveguides with a diameter on the order of 2 μm, produced in the glass bulk, at approximately 100 μm below the sample surface. By coupling 488 nm light, the fabricated waveguide showed the capability of guiding the typical emission of Tb³⁺ ions. Such glasses containing rare earths could be suitable for the development of green light-emitting microdevices.

硼酸盐玻璃具有承载各种改性剂离子的能力，因此适用于广泛的应用。具体而言，已经研究了掺有稀土的掺杂四硼酸钙锂（CaLiBO）玻璃的应用，涉及能量转移过程。在这项工作中，通过飞秒激光微加工在包含Tb ³⁺和Yb ^3+的CaLiBO玻璃中刻写了波导离子，在绿色区域显示发射。在7.0mm长的波导中获得了632.8 nm的单模波导，其传播损耗约为2.0 dB / cm，直径为2μm，在玻璃块中产生，在样品表面以下约100μm处。 。通过耦合488 nm的光，制成的波导具有引导Tb ³⁺离子典型发射的能力。这种含有稀土的玻璃可能适合于绿色发光微器件的开发。