Fiber optic polarization beam splitter using a reduced graphene oxide-based interlayer

Citation

Koo, J.; Park, J.; Song, Y.-W.; Lee, S.; Lee, K.; Lee, J. H. (2015). Fiber optic polarization beam splitter using a reduced graphene oxide-based interlayer. Optical Materials, 46, 324–328. https://doi.org/10.1016/j.optmat.2015.04.039.

Keywords

• Fiber optic polarization beam splitter (PBS)
• Reduced graphene oxide (rGO)
• Metallic interlayer material
• Coupler structure
• Side-polished fibers
• Transverse magnetic (TM) surface waves
• Polarization extinction ratio
• Operating bandwidth
• Graphene oxide (GO)
• Ultraviolet (UV) irradiation-based reduction
• TM mode
• TE mode
• Surface plasmon polaritons
• Insertion loss
• Tunable laser
• Polarimeter
• Half-wave plate
• Dielectric GO spraying

Brief

This article proposes and demonstrates a fiber optic polarization beam splitter (PBS) that utilizes a reduced graphene oxide (rGO) interlayer in a coupler structure to achieve polarization beam splitting based on TM surface wave induction, exhibiting a polarization extinction ratio of 14.5 dB and an operating bandwidth of at least 100 nm.

Summary

This article presents a fiber optic polarization beam splitter (PBS) created using a reduced graphene oxide (rGO) interlayer between two side-polished fibers. The rGO layer, formed by GO spraying and UV irradiation, enables polarization beam splitting through the induction of TM surface waves. The fabricated PBS demonstrated a polarization extinction ratio of 14.5 dB at 1550 nm and an operating bandwidth of at least 100 nm (1500-1600 nm). This work shows the potential of using low-cost rGO for creating fiber optic PBS devices.

Origin: https://sci.bban.top/pdf/10.1016/j.optmat.2015.04.039.pdf#