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Conference Paper
Balancing the Trade-Off Between Absorption And Nonlinearity In NLO Polymers For Practical Applications
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- Authors
- Min-Su Kim, Jung Jin Ju, Seung Koo Park, Jung Yun Do, Myung-Hyun Lee
- Issue Date
- 2005-08
- Citation
- Linear and Nonlinear Optics of Organic Materials V (SPIE 5935), v.5935, pp.1-8
- Publisher
- SPIE
- Language
- English
- Type
- Conference Paper
- Abstract
- Despite many advantages toward nonlinear optical (NLO) waveguide devices, NLO polymers have not been adopted successfully into practical wavelength converters due to their high absorption losses. Empirical and theoretical understandings about NLO susceptibilities imply the fundamental trade-off between optical absorption and nonlinearity. Our theoretical analysis elucidates the effect of absorption losses on second-harmonic generation, difference-frequency generation, and cascaded wavelength conversion. We compare analytically maximum conversion efficiencies for those NLO processes with several NLO polymers and suggest that the cascaded wavelength conversion is a plausible application of NLO polymers. Furthermore, we found a convincing approach for the development of NLO polymers with the optimum combination of high optical nonlinearity and low material absorption, which leads us to realize efficient polymeric wavelength converters.
- KSP Keywords
- Conversion efficiency(C.E.), High absorption, Material absorption, Nonlinear optical, Optical nonlinearity, Second Harmonic Generation, Theoretical Analysis, Trade-off, Waveguide devices, difference frequency generation, optical absorption