All-optical regeneration of polarization of a 40 Gbit/s return-to-zero telecommunication signal [Invited]

作者：Fatome J; Sugny D; Pitois S; Morin P; Guasoni M; Picozzi A; Jauslin H R; Finot C; Millot G^*; Wabnitz S

来源：Photonics Research, 2013, 1(3): 115-123.

DOI：10.1364/PRJ.1.000115

We report all-optical regeneration of the state of polarization of a 40 Gbit/s return-to-zero telecommunication signal. The device discussed here consists of a 6.2-km-long nonzero dispersion-shifted fiber, with low polarization mode dispersion, pumped from the output end by a backward propagating wave coming from either an external continuous source or a reflection of the signal. An initially scrambled signal acquires a degree of polarization close to 100% toward the polarization generator output. All-optical regeneration is confirmed by means of polarization and bit-error-rate measurements as well as real-time observation of the eye diagrams. We show that the physical mechanism underlying the observed four-wave-mixing-based polarization attraction phenomenon can be described in terms of the geometric approach developed for the study of Hamiltonian singularities.

• 出版日期2013-10