1．55μm波段聚合物光波导放大器的研究

Study of Polymer Optical Waveguide Amplifier at 1.55 μm Wavelength

合成了铒镱共掺的三元配合物[ErmYbl／2（HFA）3（TPPO）2]，并将其掺杂在聚甲基丙烯酸甲酯（PMMA）中，制备了铒镱共掺的聚合物光波导有源材料，对材料的吸收、发射特性进行了表征。在980nm抽运光激发下，该配合物在1535nm波长处的荧光半峰全宽为80nm。针对该材料，建立了980nrn抽运光激发下的原子速率方程和光功率传输方程，理论计算了铒离子掺杂浓度、重叠积分因子、信号光发射截面等参数对铒镱共掺聚合物光波导放大器性能的影响。计算表明，当材料中铒离子的掺杂浓度为0．3X1020cm-3时，在2cm长的波导中可获得1．87dB的光增益。

Er-Yb co-doped polymer waveguide active material is prepared. The three ^-diketonate complexes of erbium and ytterbium [Er1/2Yb1/2 （HFA）3 （TPPO）2 ] is synthesized and doped in PMMA. At the 980 nm pumping light excitation, the full width at half maximum of the complexes＇ fluorescence in the 1535 nm is 80 nm. The absorption and photoluminescence spectra of the active material are observed. Fundamental rate equations and power propagation equations used to simulate the gain factors of the active material excited at pumping light wavelength 980 nm. The influence on the performance of Er-Yb co-doped polymer waveguide amplifier with Er3~ concentration, overlapping factor of the signal laser and pumping laser, and signal emission cross-sections is theoretically calculated. The result of the calculations indicates that when the concentration of Er3＋ is 0.3 1020 cm-3 in the active material, the calculated gain is 1.87 dB on a 2cm long waveguide.