利用可调谐外腔半导体激光器进行了波长转换实验。静态转换后的波长可以在 6 0nm范围内连续调谐 ,并实现了 155Mb/s和 6 2 2Mb/s速率信号的动态波长转换。对激光器型波长转换器的噪声传输特性进行了研究 ,分析表明 ,由于输入和输出存在阈值特性 ,因此可以有效地抑制输入信号“1”上的噪声。波长转换对噪声性能的改善和输入光的功率和噪声带宽有关 Wavelength conversion experiments were conducted with tunable external cavity semiconductor lasers. The wavelength after static conversion can be continuously tuned in the range of 600nm and achieve the dynamic wavelength conversion of 155Mb / s and 62 2Mb / s signals. The noise transmission characteristics of the laser-based wavelength converter are studied. The analysis shows that the noise on the input signal “1” can be effectively suppressed due to the threshold characteristics of the input and output. The improvement of the noise performance by the wavelength conversion is related to the power of the input light and the bandwidth of the noise