Thermal stability enhancement of electrooptic polymer modulator

  title={Thermal stability enhancement of electrooptic polymer modulator},
  author={Suntak Park and Jung Jin Ju and Jung Yun Do and Seung Koo Park and Myung-Hyun Lee},
  journal={IEEE Photonics Technology Letters},
We synthesized a novel electrooptic (EO) polymer with good thermal stability and high optical nonlinearity. The EO polymer has a side-chain structure of a hyper-branched chromophore in polyetherimide. In order to improve the thermal stability, the EO polymer has been designed to have a high glass transition temperature (178/spl deg/C). The hyper-branched chromophores induced a large EO coefficient (35 pm/V at 1550 nm). An optical intensity modulator based on the EO polymer was demonstrated. The… CONTINUE READING