Abstract
We show theoretically and experimentally that twisting a birefringent periodically poled fiber with an artificially induced X2 results in second-harmonic phase-matchings that are not permitted in untwisted fibers. We further demonstrate that both the strengths and the spectral positions of the generated second-harmonic signals can be controlled by changing the amount of twist. Of particular interest is a type II phase-matched signal emerging through and greatly enhanced by the twisting.
| Original language | English |
|---|---|
| Pages (from-to) | 2410-2415 |
| Number of pages | 6 |
| Journal | Journal of the Optical Society of America B: Optical Physics |
| Volume | 27 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
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