Abstract
We report the fabrication and characterization of rib chalcogenide waveguides produced by dry etching with CF4 and O2. The high index contrast waveguides (Δn ∼ 1) show a minimum propagation loss of 0.25 dB/cm. The high refractive nonlinearity of ∼ 100 times silica in As2S3 allowed observation of a π phase shift due to self-phase modulation of an 8 ps duration 1573 nm pulse in a 5 cm long waveguide.
| Original language | English |
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| Pages (from-to) | 5140-5145 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 12 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - Oct 2004 |