Ibarra-Escamilla B, Kuzin E A, Zaca-Morán P, Grajales-Coutiño R, Mendez-Martinez F, Pottiez O, Rojas-Laguna R, Haus J W
Opt Express. 2005 Dec 26;13(26):10760-7. doi: 10.1364/opex.13.010760.
We examine the transmission characteristics of a NOLM device using a symmetrical coupler, highly twisted fiber, and a quarter-wave (QW) retarder plate introducing a polarization asymmetry in the loop. We demonstrate high dynamic range with controllable transmissivity, and good stability over long times. We experimentally study the transmission behavior for different input polarization states and distinguish between different polarization components of the output beam. Experiments are in good agreement with our theoretical approach previously published. Appropriate choice of the input and output polarizations allows a very high dynamic range. The adjustment of the QW retarder and input polarization enables tuning the critical power over a wide range.
我们使用对称耦合器、高度扭曲光纤和在环路中引入偏振不对称的四分之一波（QW）延迟器板来研究非线性光学环镜（NOLM）器件的传输特性。我们展示了具有可控透射率的高动态范围以及长时间的良好稳定性。我们通过实验研究了不同输入偏振态的传输行为，并区分了输出光束的不同偏振分量。实验结果与我们之前发表的理论方法非常吻合。适当选择输入和输出偏振可实现非常高的动态范围。调整QW延迟器和输入偏振能够在很宽的范围内调节临界功率。
