Year: 2009
Type: article
Abstract: An optical isolator with a Si guiding layer that makes use of a nonreciprocal phase shift is discussed. The Si guiding layer was sputter-deposited on a garnet substrate. The magnetooptic waveguide in the optical isolator had an air/Si/magnetic garnet structure. The Si layer deposited on the garnet substrate was analyzed by spectroscopic ellipsometry and X-ray diffraction. A rib waveguide was fabricated on the deposited Si layer and evaluated. The nonreciprocal phase shift in the magnetooptic waveguide was calculated at a wavelength of 1.55 µm. The required thickness of the magnetic-garnet cladding layer was obtained by calculating the nonreciprocal phase shift.
Authors: Hideki Yokoi, Keigo Sasaki, Takayoshi Aiba
Institution: Shibaura Institute of Technology
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2024918686