A non-linear optical（NLO） material was synthesized by means of a simple method.This material can be applied in electro-optical（EO） devices,such as EO switches and modulators.The Disperse Red 1（DR1） was doped in ...A non-linear optical（NLO） material was synthesized by means of a simple method.This material can be applied in electro-optical（EO） devices,such as EO switches and modulators.The Disperse Red 1（DR1） was doped in polymethyl-methacrylate-co-glycidyl methacrylate（PMMA-co-GMA） as the NLO active chromophore.The synthesis process and material structure were expressed.The thermal properties,surface morphology and optical characteristics of the material were investigated by means of differential scanning calorimetry（DSC）,thermogravimetric analysis（TGA）,atomic force microscopy（AFM）,and m-lines technique.Using the reflection technique,the value of the electro-optical coefficient γ 33 was measured as 11 pm/V at a wavelength of 1310 nm.An EO switch with nanosecond response based on this material has been fabricated.展开更多
Two-layer structure consisting of PS/PMMA-DR1 composite film planar waveguide layer on porous silicon cladding layer was fabricated in our experiment. The induced grating based on the third nonlinear optical propertie...Two-layer structure consisting of PS/PMMA-DR1 composite film planar waveguide layer on porous silicon cladding layer was fabricated in our experiment. The induced grating based on the third nonlinear optical properties was formed by interaction of two Nd∶YAG laser beams at 1064nm in the porous silicon/PMMA-DR1 waveguide. The diffraction efficiency of the first order diffracted light is measured to be about 0.2% of the total output.展开更多
The preparation of a nonlinear directional coupler in polymer PMMA/DR1 film by photobleaching is studied. We find it easier to obtain a required coupling length by controlling photo bleaching time than by controlling ...The preparation of a nonlinear directional coupler in polymer PMMA/DR1 film by photobleaching is studied. We find it easier to obtain a required coupling length by controlling photo bleaching time than by controlling the dimension of the coupler. The transmittance of each arm is measured when the pulse input light energy changes in our experiment. The experimental results show that the coupling length will change with the intensity of input light due to optical nonlinearities of the polymer PMMA/DR1 at 1 064 nm.展开更多
基金Supported by the National Natural Science Foundation of China(Nos.61107019,61177027,61077041,60807029)the Science Foundation for Young Scientists of Jilin Province,China(No. 20100174)+1 种基金the Science and Technology Development Plan of Jilin Province,China(No.20110315)the Program for Special Funds of Basic Science & Technology of Jilin University,China(Nos.201103071,201100253,200905005)
文摘A non-linear optical（NLO） material was synthesized by means of a simple method.This material can be applied in electro-optical（EO） devices,such as EO switches and modulators.The Disperse Red 1（DR1） was doped in polymethyl-methacrylate-co-glycidyl methacrylate（PMMA-co-GMA） as the NLO active chromophore.The synthesis process and material structure were expressed.The thermal properties,surface morphology and optical characteristics of the material were investigated by means of differential scanning calorimetry（DSC）,thermogravimetric analysis（TGA）,atomic force microscopy（AFM）,and m-lines technique.Using the reflection technique,the value of the electro-optical coefficient γ 33 was measured as 11 pm/V at a wavelength of 1310 nm.An EO switch with nanosecond response based on this material has been fabricated.
基金National Natural Science Foundation of China(60067001) West Glory Project of Chinese Academy of Science(2003XJDX) +1 种基金Excellent Youth Scholar Award Foundation of Xinjiang(XJEDU2004E02)
文摘Two-layer structure consisting of PS/PMMA-DR1 composite film planar waveguide layer on porous silicon cladding layer was fabricated in our experiment. The induced grating based on the third nonlinear optical properties was formed by interaction of two Nd∶YAG laser beams at 1064nm in the porous silicon/PMMA-DR1 waveguide. The diffraction efficiency of the first order diffracted light is measured to be about 0.2% of the total output.
文摘The preparation of a nonlinear directional coupler in polymer PMMA/DR1 film by photobleaching is studied. We find it easier to obtain a required coupling length by controlling photo bleaching time than by controlling the dimension of the coupler. The transmittance of each arm is measured when the pulse input light energy changes in our experiment. The experimental results show that the coupling length will change with the intensity of input light due to optical nonlinearities of the polymer PMMA/DR1 at 1 064 nm.
