A study of automatic fabrication technique of optical circuits

研究了一种利用两面位相共轭反射镜(PCM)之间的位相共轭波(PCW)振荡来实现光路自动制作的技术。这项技术的目的是根据PCW硬化的光固化树脂形成的光路自动制造光耦合器和分支电路。(1)两根光纤之间的连接路径是由一根光纤发出的辐射光和在两根光纤之间插入的光固化树脂构成的。(2)模式转换提高了光纤的空间频率，降低了透射光在光纤中的反射率。(3)利用显微镜直接观察到传输PCW的两根不同尺寸的纤芯上的光子晶体波的时间反转现象，从大尺寸纤芯发出的光子晶体波聚焦在另一根小纤芯上。(4)在自由空间中，由于入射功率条件对两个相变材料的选择，两个相变材料之间的POW振荡继续进行。利用两种相变材料的反射率特性，可以模拟其振荡功率。另一方面，光学电路还没有成功，因为通过两根光纤振荡的PCW功率太弱，不能硬化光固化树脂。

An automatic fabrication technique of optical circuits using by the oscillation of the phase-conjugate waves (PCW) between two facing phase-conjugate mirrors(PCM)was studied. The purpose of this technique was to fabricate the optical coupler and branch circuits automatically according to the optical path made by the light hardening resins hardened by the PCW.Our studies reveal the following results. (1) The connecting path between two fibers is fabricated by the radiation light from one fiber and the light hardening resins inserted between two fibers . (2) The PCW reflectivity by the transmission light through the fibers decrease because the increase of the spatial frequencies by the mode conversion. (3) The time reversing of the PCW is observed directly by the microscope set on the two different size core fibers propagating the PCW.The PCW radiated from large size core is focused on the other small size core. (4) In the free space, the oscillation of the POW between two facing PCMs is continued due to the sellection of the incidence power conditions to the two PCMs. And the oscillation powers are able to be simulated by the reflectivity characters of two PCMs. On the othe hand, the optical circuits have not been succeeded yet, because the PCW powers oscillated through two fibers have been too weak to harden the light hardening resin.