Abstract
A novel interferometric isolator that consists of multimode interference (MMI) couplers and operates under a unidirectional magnetic field has been proposed and designed to fabricate a high-performance waveguide magnetooptic isolator operating at a wavelength of 1.55 μm. The optical isolator has an upper HfO2 cladding layer in one arm of the interferometer, and the other arm is covered with a SiO2 cladding layer. By virtue of this configuration, the isolator operates under a unidirectional magnetic field. The optimized structure of the isolator was determined by a 3D beam propagation method.
Original language | English |
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Pages (from-to) | 7045-7049 |
Number of pages | 5 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 43 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2004 Oct |
Externally published | Yes |
Keywords
- Garnet
- Multimode interference coupler
- Nonreciprocal phase shift
- Optical isolator
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)