塑料光纤在成本、光纤到户和短距离通信等方面与石英光纤相比具有优越性。在塑料光纤基底中掺入某些光放大介质（如量子点），可以制备出塑料光纤放大器。目前，对于量子点掺杂的塑料光纤材料的光学性能的研究还很少。报导了一种以聚甲基丙烯酸甲酯（PMMA）为基底的CdSe量子点光纤材料CdSe/PMMA。紫外可见近红外吸收谱以及荧光辐射谱测量表明，制备的CdSe量子点的尺寸单分散性较好，CdSe/PMMA的发射峰比CdSe的发射峰宽，其半峰全宽加宽了约10 nm。在波长为473 nm的激光持续照射下，CdSe/PMMA的荧光辐射强度不断增强，约12 h后发光强度趋稳，峰值强度增加约1倍，同时，荧光峰值波长出现蓝移，约25 nm，没有回复现象。由于CdSe/PMMA具有强荧光辐射和宽光谱的特点，因此有可能是一种较为理想的宽光谱光纤基底材料。

Plastic fiber has advantages over the conventional quartz fiber on respect of cost, fiber to the home application and short-distance communications. The plastic fiber amplifier can be gotten by doping the optical gain media such as quantum dots (QD) into plastic fiber. However, there is few study reported on the QD-doped plastic fiber. CdSe QD doped PMMA fiber material (CdSe/PMMA) is prepared. The UV-vis-near-infrared spectrum shows a narrow-size distribution of the CdSe QD in the CdSe/PMMA. The photoluminescence (PL) spectrum of the CdSe/PMMA is widen (about 10 nm) compared with the plain CdSe QD. Irradiated by a 473 nm laser for about 12 h, the PL peak intensity of the CdSe/PMMA is enhanced (about 1 time), and the peak wavelength shows a blue shift with 25 nm. Obtained results suggest that the CdSe/PMMA may be available fiber materials used as broadband amplifiers in the future.