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Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si$_{3}$N$_{4}$ /SiO$_{2}$ Waveguides on Silicon
- Source :
- IEEE Photonics Journal. 8:1-12
- Publication Year :
- 2016
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2016.
-
Abstract
- An easy-to-fabricate but very efficient fiber-to-waveguide coupler is theoretically analyzed and experimentally demonstrated. In this design, light from a single-mode fiber can be butt coupled into a single-mode high-index-contrast Si $_{3}$ N $_{4}$ /SiO $_{2}$ waveguide with a measured coupling efficiency of 96% at the wavelength of 1550 nm and $>$ 90% in the spectral range from 1450 to 1650 nm. Large horizontal and vertical alignment tolerances of 3.8 $\mu \text{m}$ and 3.6 $\mu \text{m}$ , respectively, are obtained between the fiber and the waveguide coupler. All these experimental results agree well with simulations. The waveguide coupler also features ease of end-facet cleaving and can be used in ultrabroadband high coupling efficiency applications.
- Subjects :
- Materials science
Silicon
business.industry
chemistry.chemical_element
02 engineering and technology
01 natural sciences
Optical coupling
Waveguide (optics)
Atomic and Molecular Physics, and Optics
010309 optics
Wavelength
020210 optoelectronics & photonics
chemistry
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Coupling efficiency
Optoelectronics
Fiber
Electrical and Electronic Engineering
business
Subjects
Details
- ISSN :
- 19430647
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- IEEE Photonics Journal
- Accession number :
- edsair.doi...........e29db538e3efd71978c4aadd28ff46da
- Full Text :
- https://doi.org/10.1109/jphot.2016.2600037