Optical waveguides connection with self-correction of mode field mismatches

研究了利用相位共轭波（PCVV）在两个面相共轭镜（PCM）之间的振荡实现两个不同模场波导的自动连接。我们的研究揭示了以下结果。通过两个不同波导的透射波产生的DPCW可自动校正模场差异。(2)距离和轴线失配等连接失配的波导间透射波的PCW反射率随距离变化值相同，随芯半径变化随时间归一化轴线失配变化值基本相同。(3)包裹体的光衰减值对双面PCM间的PCW振荡有影响。衰减的容忍极限取决于PCM的s参数，该参数由相互作用系数和相互作用长度决定。热折变晶体估计衰减值为40%。(4)若公差限制在40%以内，则难以实现实用化的制造系统。人工生成PCW可以使我们避免这些困难。验证了DMD型空间光调制作为PCM输入器件的可行性。

Automatic connection of two different mode field waveguides by oscillation of the phase conjugate waves(PCVV) between two faced phase conjugate mirrors(PCM) is studied. Our studies revealed the following results. (DPCW generated from the transmitted waves through two different waveguides corrects the mode field differences automatically. (2)The PCW reflectivities of the transmitted waves between two waveguides with connection mismatches like the distances and axis misalignments have the same values against the distances, and have the almost same values against tine normalized axis misalignment by the core radius. (3) The PCW oscillation between two faced PCM is influenced by the optical attenuation values of the inclusions. The tolerance limit of the attenuation depends on the s parameter of the PCM, and the parameter is decided by the interaction coefficient and the interaction length. The estimated attenuation value from the hotorefractive crystal is 40%. (4) The realization of the practical fabrication system is difficult if the tolerance is restricted within 40%. The artificial generation of the PCW may enable us to avoid the difficulties. The feasibility of the DMD type spatial light modulation as the input device to the PCM is confirmed.