상세정보
학술대회
Balancing the Trade-Off Between Absorption And Nonlinearity In NLO Polymers For Practical Applications
- 발행일
- 200508
- 출처
- Linear and Nonlinear Optics of Organic Materials V (SPIE 5935), v.5935, pp.1-8
- 협약과제
- 05MB3700, 40G 모듈(테라비트 통신용 InP RF 집적회로 기술개발), 이명현
- 초록
- 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 제안 키워드
- 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