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Nonlinear enhancement in photonic crystal slow light waveguides fabricated using CMOS-compatible process.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Shinkawa, Mizuki Ishikura, Norihiro Hama, Yosuke Suzuki, Keijiro Baba, Toshihiko |
| Copyright Year | 2011 |
| Abstract | We have studied low-dispersion slow light and its nonlinear enhancement in photonic crystal waveguides. In this work, we fabricated the waveguides using Si CMOS-compatible process. It enables us to integrate spotsize converters, which greatly simplifies the optical coupling from fibers as well as demonstration of the nonlinear enhancement. Two-photon absorption, self-phase modulation and four-wave mixing were observed clearly for picosecond pulses in a 200-μm-long device. In comparison with Si wire waveguides, a 60-120 fold higher nonlinearity was evaluated for a group index of 51. Unique intensity response also occurred due to the specific transmission spectrum and enhanced nonlinearities. Such slow light may add various functionalities in Si photonics, while loss reduction is desired for ensuring the advantage of slow light. |
| File Format | PDF HTM / HTML |
| DOI | 10.1364/OE.19.022208 |
| Alternate Webpage(s) | http://www.baba-lab.ynu.ac.jp/Shinkawa%20OE%20nonlinear.pdf |
| PubMed reference number | 22109063 |
| Alternate Webpage(s) | https://doi.org/10.1364/OE.19.022208 |
| Journal | Medline |
| Volume Number | 19 |
| Issue Number | 22 |
| Journal | Optics express |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
