Related Experiment Video
Updated: Nov 26, 2025
11:24
Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
Published on: July 11, 2025
11.9K
Ultra-broadband mode filters based on graphene-embedded waveguides
Optics Letters
|September 29, 2017
Summary
We developed novel spatial-mode filters using graphene in optical waveguides. These filters offer high performance, are easy to fabricate, and are wavelength-insensitive, benefiting mode-division-multiplexing systems.
Area of Science:
- Photonics and Optical Engineering
- Materials Science
Background:
- Optical communication systems require efficient methods for managing and selecting spatial modes.
- Existing mode filters can be complex, wavelength-dependent, or difficult to fabricate.
Purpose of the Study:
- To propose and demonstrate a novel spatial-mode filter design utilizing embedded graphene films in optical waveguides.
- To showcase the flexibility and effectiveness of graphene-based mode filters for various applications.
Main Methods:
- Designing and fabricating spatial-mode filters by embedding graphene films of varying dimensions within polymer optical waveguides.
- Characterizing the performance of the fabricated mode filters.
Main Results:
- Successfully fabricated flexible graphene-based spatial-mode filters.
- Achieved high mode extinction ratios that are insensitive to the operating wavelength.
- Demonstrated ease of fabrication for the proposed mode filters.
Conclusions:
- Graphene-embedded waveguide structures provide an effective and versatile platform for spatial-mode filtering.
- These filters are suitable for broadband mode-division-multiplexing (MDM) systems and other optical mode manipulation tasks.
