Investigation of Hybrid Silicon-Nitride/Polymer Waveguides for Second-Harmonic Generation
We propose a hybrid silicon-nitride (Si<sub>3</sub>N<sub>4</sub> or SiN for short)/nonlinear polymer waveguide to achieve second-harmonic generation of an input 1550 nm signal by modal phase-matching between zero-order spatial mode at 1550 nm...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2019-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8700286/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | We propose a hybrid silicon-nitride (Si<sub>3</sub>N<sub>4</sub> or SiN for short)/nonlinear polymer waveguide to achieve second-harmonic generation of an input 1550 nm signal by modal phase-matching between zero-order spatial mode at 1550 nm and second-order mode at 775 nm. We explore and optimize two cases, single channel waveguide and slot waveguide, by varying the waveguide dimensions. For TE polarized light, the optimum slot waveguide exhibits an effective interaction area <italic>A</italic><sub>eff</sub> of about 16 <italic>μ</italic>m<sup>2</sup>, which is an order-of-magnitude improvement over the single channel waveguide and can translate to a high value of effective nonlinearity. We also show that the optimum slot waveguide geometry is robust with respect to fabrication uncertainties and bending effects. |
|---|---|
| ISSN: | 1943-0655 |