Faraday rotation of the He+-ion-implanted and diamond-blade-diced magneto-optical glass ridge waveguide
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2025-01-14 |
| Journal | Journal of the Optical Society of America B |
| Authors | ChunâXiao Liu, Shu-dong Xing, Zihao Wang, K. Li, Wang Sun |
Abstract
Section titled âAbstractâIn this work, we report on the fabrication and Faraday rotating properties of the ridge waveguide in magneto-optical glass. The planar and ridge waveguides are formed using 0.4MeVHe + -ion implantation with a fluence of 6Ă10 16 ion/cm 2 and 2.0Ă10 4 rpm diamond blade dicing with a speed of 0.2 mm/s. The refractive index distribution and dark-mode spectrum are obtained by the RCM and prism-coupling system, respectively. Zeiss and Nikon microscopes are used to capture the micro-images of the planar and ridge waveguides, respectively. After annealing at 260°C for 1 h, the near-field light intensity distributions of the planar and ridge waveguides are measured by the end-face coupling method. Faraday rotation of the bulk and ridge waveguides is measured and analyzed based on the magneto-optical effect measurement system. Although there is a slight reduction in the Verdet constant of the waveguide compared with that of pure magneto-optical glass, the Faraday effect is well preserved in the ridge structure. It has potential for applications in magneto-optical waveguides as integrated optical rotators and isolators.