This study presents a theoretical model for polarisation manipulation using electronic polarisation controllers (EPCs) based on fibre squeezing. A method to calculate the EPC configuration in order to transform between two arbitrary states of polarisation (SOP) is presented. After, a technique to deterministically generate four SOPs for use in polarisation-encoded quantum communication systems is proposed. Moreover, the effectiveness of the proposed technique is experimentally assessed through the generation of two pairs of orthogonal SOPs. The experimental implementation used an field programmable gate array (FPGA) board to electrically control the four waveplates of the EPC, reaching a rate of 500 qubit/s. Results show that this polarisation generation process is intrinsically stable, demonstrating its potential for practical implementations of polarisation-encoding quantum key distribution systems using the BB84 and B92 protocols.

中文翻译：

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FPGA辅助的偏振态生成，用于偏振编码的光通信

这项研究提出了一个基于光纤压缩的电子偏振控制器（EPC）进行偏振操作的理论模型。提出了一种计算EPC配置以便在两个任意极化状态（SOP）之间转换的方法。此后，提出了一种确定性地生成用于极化编码量子通信系统的四个SOP的技术。此外，通过两对正交SOP的生成，通过实验评估了所提出技术的有效性。实验实现使用现场可编程门阵列（FPGA）板来电控制EPC的四个波片，达到500 qubit / s的速率。结果表明，这种极化产生过程本质上是稳定的，