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 |
|---|---|
| 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 1 |
| Externally published | Yes |
Keywords
- Garnet
- Multimode interference coupler
- Nonreciprocal phase shift
- Optical isolator
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Cite this
Yang, J. S., Shoji, Y., Yokoi, H., Ono, M., & Mizumoto, T. (2004). Investigation of nonreciprocal characteristics and design of interferometric optical isolator with multimode interference coupler operating with a unidirectional magnetic field. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 43(10), 7045-7049. https://doi.org/10.1143/JJAP.43.7045