【作者】 陈海燕； 李太全； 赵明； 李林； 黄春雄； 徐大海；

【机构】 长江大学物理科学与技术学院；

【摘要】 本文提出了一种有源环行腔滤波器结构,重点讨论了腔内净增益对滤波器的带宽和精细度的影响。利用传输矩阵法给出了直波导和有源环行腔耦合的普遍关系式,得出了滤波器带宽和精细度的解析表达式。对环行腔的输出特性进行了数值计算,数值计算结果表明:环行腔净增益因子压缩了滤波器的带宽、提高了滤波器的精细度。通过调节泵浦光的输入功率,即可调节环行腔净增益因子,从而调节滤波器的输出光谱特性。更多还原

【Abstract】 A novel active ring resonator filter is proposed in this paper. Effect of the inner net gain of ring resonator on the bandwidth and finesse of filter. Some universal relations for coupling of optical power between active microresonator and dielectric waveguides are presented. The analytical expressions of filter bandwidth (or the Full Width at Half Maximum FWHM) and finesse of resonator are derived. The characteristics of the active ring microresonator filter is discussed numerically. It is demonstrated that the net gain of the ring resonator reduces the filter bandwidth, and increases the finesse of the resonator filter. The spectral performance of the active ring resonator can be adjusted by the input power of pump.更多还原