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

Joonhoi Koo, Jaehyun Park, Yong Won Song, Sangbae Lee, Kwanil Lee, Ju Han Lee

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


A fiber-optic polarization beam splitter (PBS) incorporating reduced graphene oxide (rGO) as a metallic interlayer material is proposed and demonstrated. It is experimentally shown that the polarization beam splitting function can readily be obtained using a coupler structure with a thin rGO layer embedded between two side-polished fibers due to induced transverse magnetic (TM) surface waves. The rGO layer was prepared by a simple method of dielectric GO spraying and ultraviolet irradiation-based reduction. The polarization extinction ratio of our implemented PBS was measured to be 14.5 dB at a wavelength of 1550 nm for both through- and cross-port. Its operating bandwidth was shown to be at least 100 nm (from 1500 to 1600 nm), which was limited by the maximum tuning range of the input tunable laser used.

Original languageEnglish
Pages (from-to)324-328
Number of pages5
JournalOptical Materials
StatePublished - 1 Aug 2015


  • Optical fiber device
  • Polarization beam splitter
  • Reduced graphene oxide


Dive into the research topics of 'Fiber optic polarization beam splitter using a reduced graphene oxide-based interlayer'. Together they form a unique fingerprint.

Cite this