高热稳定性氟化聚醚砜的合成及其在阵列波导光栅复用器中的应用

Synthesis of Fluorinated Poly(ether sulfone) with High Thermal Stability and Its Application for Arrayed Waveguide Grating Multiplexer

用合成的 3 -三氟甲基苯侧基聚醚砜 ( 3 F-PES)作为波导芯层材料制作了新型硅基聚合物阵列波导光栅( AWG)复用器 .采用 DSC,TGA和 AFM等方法对 3 F-PES的光学性质和热稳定性进行了表征 .DSC和TGA结果显示 ,3 F-PES的玻璃化转变温度为 1 70℃ ,在空气中 5 %的热失重温度为 5 42℃ ,表明具有非常好的热稳定性 . 3 F-PES溶液在旋涂时具有很好的成膜性 ,AFM照片显示 ,粗糙度起伏为 0 .3 5 nm.近红外吸收谱表明 ,3 F-PES在光通讯波段有较小的吸收 ,适合用来制作低损耗的光波导器件 .用 3 F-PES作为波导芯层材料制作的八通道硅基聚合物阵列波导光栅 ( AWG)复用器的通道间隔为 1 .60 3 nm,中心波长为1 5 5 0 .1 5 nm.

A new arrayed waveguide grating(AWG) multiplexer was fabricated by using synthesized 3F-PES as the waveguide core. The DSC and TGA exhibit T g and the temperature at which 5% mass loss occurred in air of 3F-PES are 170 and 542 ℃, respectively. The infrared absorption spectrum indicates that 3F-PES has a high optical transparency in the infrared communication region. The AFM exhibits the roughness of the 3F-PES film is 0.35 nm. The arrayed waveguide grating(AWG) multiplexer was fabricated by using the 3F-PES as the waveguide core. The AWG multiplexer exhibits a wavelength channel spacing of 1.603 nm and a center wavelength of 1 550.15 nm.