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Journal Article
Second-harmonic generation in periodically poled nonlinear polymer waveguides
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- Authors
- Jung Jin Ju, Jongbae Kim, Jung Yun Do, Min-su Kim, Seung Koo Park, Suntak Park, Myung-Hyun Lee
- Issue Date
- 2004-01
- Citation
- Optics Letters, v.29, no.1, pp.89-91
- ISSN
- 0146-9592
- Publisher
- Optical Society of America (OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- We demonstrate quasi-phase-matched (QPM) second-harmonic generation (SHG) at the optical communication wavelengths with side-chain polymer waveguides. A ridge waveguide structure is designed to support fundamental mode guiding at both the pump and the second harmonics, leading to a high field overlap integral of the guided modes. The nonlinearity contrast in the +/0 type QPM waveguide is maximized under a QPM poling electrode width of nearly half the coherence length. Using these configurations, we record a normalized SHG efficiency of 2.2% W-1 cm-2 in the polymer waveguide.