Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 23, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Waveguide grating coupler with subwavelength microstructures.

Robert Halir1, Pavel Cheben, Siegfried Janz

  • 1Departamento Ingeniería de Comunicaciones, ETSI Telecomunicación, Universidad de Málaga, 29010 Málaga, Spain. robert.halir@ic.uma.es

Optics Letters
|May 5, 2009
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Edge-emitting LED refractometer.

Optics express·2026
Same author

Compact topology-optimized wavelength demultiplexers with flat-top response enabled by deep learning-based fabrication correction.

Optics express·2026
Same author

Polarization-independent narrow-band integrated add-drop filter for the short near-infrared wavelength range.

Optics letters·2026
Same author

Fine Mapping of MHC Region Identifies Novel Susceptibility Loci in Multiple Myeloma When Comparing With Its Precursor Monoclonal Gammopathy of Unknown Significance.

HLA·2026
Same author

Planar waveguide circulating Gaussian beam resonators on a silicon photonic chip.

Optics express·2025
Same author

Thermo-optic-enabled topological optimization for tunable ultra-compact silicon photonic device design.

Optics express·2025
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

We developed a novel silicon grating coupler with a subwavelength microstructure for efficient optical fiber coupling. This single-etch fabrication method optimizes field overlap and minimizes backreflection for sensing applications.

Area of Science:

  • Photonics
  • Materials Science
  • Nanotechnology

Background:

  • Silicon photonics enables integrated optical circuits.
  • Efficient coupling between waveguides and optical fibers is crucial for device performance.
  • Existing couplers often require complex fabrication or suffer from high backreflection.

Purpose of the Study:

  • To propose a novel silicon waveguide-fiber grating coupler.
  • To achieve continuously variable grating strength using subwavelength microstructure.
  • To optimize coupling efficiency and minimize backreflection for sensing applications.

Main Methods:

  • Design of a silicon grating coupler utilizing subwavelength microstructure.
  • Single etch step fabrication process.

More Related Videos

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Related Experiment Videos

Last Updated: Jun 23, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

  • Apodization of the grating coupler for optimized field overlap.
  • Optimization for quasi-Transverse Magnetic (TM) mode in silicon photonic-wire waveguides.

    • Main Results:

    • Achieved up to 94% field overlap with a standard single-mode optical fiber (SMF-28).
    • Reduced backreflection from the grating to approximately 0.1%.
    • Predicted total photonic wire to fiber coupling efficiency of 50%.

    Conclusions:

    • The proposed subwavelength microstructure grating coupler offers high performance and simplified fabrication.
    • The design is suitable for waveguide evanescent-field-sensing applications requiring quasi-TM mode.
    • This technology advances efficient light management in silicon photonic integrated circuits.