In a polyconjugated main chain polymer strip waveguide the nonlinear, nonresonant refractive index n(2) was measured by monitoring the signal spectrum broadening due to self-phase modulation, The two photon absorption coefficient alpha(2) was obtained by calibrating the inverse transmission measurement. The nonlinear coefficients were determined to be n(2)=0.85 x 10(-14) cm(-2)/W and alpha(2)=0.08 cm/GW at a wavelength lambda=885.6 nm. The used polymer was poly[1,4-phenylene-1,2-di(phenoxyphenyl)vinylene]. The result is in good agreement with interferometer measurements. The material is suitable for all-optical switching. (C) 1997 American Institute of Physics.
Spectral broadening measurements in poly(phenylene vinylene) polymer channel waveguides / T. H., Gabler; R., Waldhausl; A., Brauer; Michelotti, Francesco; H. H., Horhold; U., Bartuch. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 70:8(1997), pp. 928-930. [10.1063/1.118462]
Spectral broadening measurements in poly(phenylene vinylene) polymer channel waveguides
MICHELOTTI, Francesco;
1997
Abstract
In a polyconjugated main chain polymer strip waveguide the nonlinear, nonresonant refractive index n(2) was measured by monitoring the signal spectrum broadening due to self-phase modulation, The two photon absorption coefficient alpha(2) was obtained by calibrating the inverse transmission measurement. The nonlinear coefficients were determined to be n(2)=0.85 x 10(-14) cm(-2)/W and alpha(2)=0.08 cm/GW at a wavelength lambda=885.6 nm. The used polymer was poly[1,4-phenylene-1,2-di(phenoxyphenyl)vinylene]. The result is in good agreement with interferometer measurements. The material is suitable for all-optical switching. (C) 1997 American Institute of Physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
