Polarization mode converters in ZnO-diffused LiNbO3 waveguides
| Autor: | Jason Retz, James E. Toney, Vincent Stenger, Sri Sriram, Andrea Pollick |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Fabrication
Materials science Birefringence business.industry Lithium niobate General Engineering Physics::Optics 02 engineering and technology Polarization (waves) 01 natural sciences Electro-optics Atomic and Molecular Physics and Optics 010309 optics Optical axis Condensed Matter::Materials Science chemistry.chemical_compound 020210 optoelectronics & photonics chemistry 0103 physical sciences Physics::Atomic and Molecular Clusters 0202 electrical engineering electronic engineering information engineering Optoelectronics Anisotropy business Circular polarization |
| Zdroj: | Optical Engineering. 58:1 |
| ISSN: | 0091-3286 |
| Popis: | The linear electro-optic effect in lithium niobate is capable of realizing a variety of polarization transformations, including TE-to-TM and left-to-right circular polarization conversion. Several types of devices have been demonstrated in Ti-diffused waveguides. LiNbO3 devices have historically been based on either Ti-diffused or proton-exchanged waveguides. The proton-exchanged waveguides only guide light polarized along the optic axis, and therefore, are not applicable to polarization transforming devices. Zinc oxide diffusion is an alternative waveguide fabrication technology that guides both e- and o-waves with much higher power-handling capability than Ti : LiNbO3 waveguides. ZnO : LiNbO3 waveguides exhibit a highly circular mode field with lower anisotropy than Ti-diffused waveguides. We report the design, fabrication, and testing of ZnO : LiNbO3 devices for polarization mode conversion. |
| Databáze: | OpenAIRE |
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