Labroille Guillaume, Denolle Bertrand, Jian Pu, Genevaux Philippe, Treps Nicolas, Morizur Jean-François
Opt Express. 2014 Jun 30;22(13):15599-607. doi: 10.1364/OE.22.015599.
We designed and built a new type of spatial mode multiplexer, based on Multi-Plane Light Conversion (MPLC), with very low intrinsic loss and high mode selectivity. In this first demonstration we show that a typical 3-mode multiplexer achieves a mode selectivity better than -23 dB and a total insertion efficiency of -4.1 dB (optical coating improvements could increase efficiency to -2.4 dB), across the full C-band. Moreover this multiplexer is able to perform any mode conversion, and we demonstrate its performance for the first 6 eigenmodes of a few-mode fiber: LP(01), LP(11a), LP(11b), LP(02), LP(21a) and LP(21b).
我们基于多平面光转换（MPLC）设计并构建了一种新型空间模式复用器，其固有损耗极低且模式选择性高。在首次演示中，我们表明，一个典型的三模式复用器在整个C波段实现了优于-23 dB的模式选择性和-4.1 dB的总插入效率（光学涂层改进可将效率提高到-2.4 dB）。此外，该复用器能够执行任何模式转换，并且我们展示了它对少模光纤的前六个本征模的性能：LP(01)、LP(11a)、LP(11b)、LP(02)、LP(21a)和LP(21b)。
