Graphene oxide-based waveguide polariser: from thin film to quasi-bulk.

We have demonstrated a broadband waveguide polariser with high extinction ratio on a polymer optical waveguide coated with graphene oxide via the drop-casting method. The highest extinction ratio of nearly 40 dB is measured at 1590 nm, with a variation of 4.5 dB across a wavelength range from 1530 nm to 1630 nm, a ratio that is (to our knowledge) the highest reported for graphene-based waveguide polarisers to date. This result is achieved with a graphene oxide coating length along the propagation direction of only 1.3 mm and a bulk film thickness of 2.0 µm. The underlying principles of the strongly polarisation dependent propagation loss demonstrated have been studied and are attributed to the anisotropic complex dielectric function of graphene oxide bulk film.

[1]  H. Melchior,et al.  Polarization insensitive, low-loss, low-crosstalk wavelength multiplexer modules , 1999 .

[2]  Choon‐Gi Choi,et al.  Graphene-based polymer waveguide polarizer. , 2012, Optics express.

[3]  S. Tedjini,et al.  Integrated optical waveguide polarizer on glass with a birefringent polymer overlay , 1998, IEEE Photonics Technology Letters.

[4]  S. Stankovich,et al.  Preparation and characterization of graphene oxide paper , 2007, Nature.

[5]  John E Bowers,et al.  Compact broadband polarizer based on shallowly-etched silicon-on-insulator ridge optical waveguides , 2010, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[6]  Imre Dékány,et al.  Hydration behavior and dynamics of water molecules in graphite oxide , 2006 .

[7]  J. Taylor,et al.  Simple method of fabricating polarisation-insensitive and very low crosstalk AWG grating devices , 1998 .

[8]  Minlin Zhong,et al.  Suppression of the coffee-ring effect by self-assembling graphene oxide and monolayer titania , 2013, Nanotechnology.

[9]  Paul H. Wöbkenberg,et al.  Graphene oxide gate dielectric for graphene-based monolithic field effect transistors , 2013 .

[10]  K. Miura,et al.  Writing waveguides in glass with a femtosecond laser. , 1996, Optics letters.

[11]  C. Chia,et al.  University of Malaya from the Selectedworks of Huang Nay Ming Simple Room-temperature Preparation of High- Yield Large-area Graphene Oxide Simple Room-temperature Preparation of High-yield Large-area Graphene Oxide , 2022 .

[12]  Zhenhua Ni,et al.  Broadband graphene polarizer , 2011 .

[13]  G. Eda,et al.  Graphene oxide as a chemically tunable platform for optical applications. , 2010, Nature chemistry.

[14]  Sung‐Yool Choi,et al.  Graphene-based plasmonic waveguides for photonic integrated circuits. , 2011, Optics express.

[15]  M. Davies,et al.  Integrated polarization compensator for WDM waveguide demultiplexers , 1999, IEEE Photonics Technology Letters.

[16]  David C Hutchings,et al.  A Waveguide Polarization Toolset Design Based on Mode Beating , 2011, IEEE Photonics Journal.

[17]  K. Kikuchi,et al.  Evaluation of Sensitivity of the Digital Coherent Receiver , 2008, Journal of Lightwave Technology.

[18]  J R Feth,et al.  Metal-clad fiber-optic cutoff polarizer. , 1986, Optics letters.

[19]  S. J. Park,et al.  Terahertz conductivity of reduced graphene oxide films. , 2013, Optics express.

[20]  Alexandra Buchsteiner,et al.  Water dynamics in graphite oxide investigated with neutron scattering. , 2006, The journal of physical chemistry. B.