Parriaux O, Gidon S, Kuznetsov A A
Appl Opt. 1981 Jul 15;20(14):2420-3. doi: 10.1364/AO.20.002420.
The core of a single-mode fiber can be reached by an optically controlled polishing technique which does not alter the fiber's mechanical strength. A directional coupler using two such fibers was designed showing a power extinction ratio from zero to more than 35 dB over a wide range of structure parameters with easy alignment operations and insertion loss lower than 1 dB.
通过一种光控抛光技术可以触及单模光纤的纤芯，该技术不会改变光纤的机械强度。设计了一种使用两根此类光纤的定向耦合器，在很宽的结构参数范围内，其功率消光比从零到超过35分贝，具有易于对准操作且插入损耗低于1分贝的特点。
