The invention provides polymeric optical materials that can be cured in air and have low optical loss in both the C-band and the L-band of the telecommunications spectrum. The polymeric materials are made by the free radical polymerization of an at least difunctional thiol compound with an at least difunctional ethylenically unsaturated compound wherein at least one of the thiol compound and the ethylenically unsaturated compound is at least partially halogenated. The compositions of this invention may be used to fabricate planar optical waveguides with low loss and low birefringence.
本发明提供了一种可以在空气中固化,并在通信光谱的C波段和L波段中具有低光学损耗的聚合物光学材料。该聚合物材料是由至少二官能
硫醇化合物与至少二官能
乙烯基不饱和化合物的自由基聚合制成,其中至少一种
硫醇化合物和
乙烯基不饱和化合物中的至少一种部分卤化。本发明的组成物可用于制造具有低损耗和低双折射的平面光波导。