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: Aug 23, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.1K

Dispersive silicon-nitride optical phased array incorporating arrayed waveguide delay lines for passive line beam

Bishal Bhandari1, Chenxi Wang1, Ji-Yeong Gwon1

  • 1Department of Electronic Engineering, Kwangwoon University, Seoul, 01897, South Korea.

Scientific Reports
|November 6, 2022
PubMed
Summary

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

Reconfigurable spatial-mode generation and multiplexing on a scalable photonic chip.

Npj nanophotonics·2026
Same author

"You are Happy, so I am Happy?" A Study on the Trickle-Down Effects of Well-Being in the Organisation.

Psychological reports·2025
Same author

Preoperative Multi-model Images-based Radiomics Model for Distinguishing Spinal Osteosarcoma and Chondrosarcoma.

Current medical imaging·2025
Same author

The Effect of Terminal Alkane Chains of Terphenyl Hemicages on the Binding Affinity and Solid-State Fluorescence of Perylene Diimide Dye.

Journal of fluorescence·2025
Same author

Genomic characterisation of the metal tolerance protein gene family and elucidation of functional role in heavy metal tolerance and accumulation in <i>Coptis chinensis</i>.

Frontiers in plant science·2025
Same author

Pre-screening value of serum albumin and the glucose-lymphocyte ratio as the "transport-activation" effectors of immune checkpoint inhibitors in small cell lung cancer.

Translational lung cancer research·2025

This study introduces a novel dispersive silicon-nitride optical phased array (OPA) for passive, wavelength-tuned line beam steering. This innovation offers adjustable 2D beam coverage with enhanced efficiency, overcoming limitations of active scanners.

Area of Science:

  • Photonics and Optical Engineering
  • Solid-State Devices
  • Beam Steering Technology

Background:

  • Optical phased arrays (OPAs) are crucial for solid-state beam scanning, with increasing demand for higher efficiency and speed.
  • Line beam scanners offer an alternative to raster scanning but traditionally require power-hungry active phase shifters and complex designs.

Purpose of the Study:

  • To propose and demonstrate a dispersive silicon-nitride OPA for passive, wavelength-tuned steering of a line beam.
  • To achieve an elongated vertical beamwidth and enable two-dimensional (2D) field-of-view coverage without active components.

Main Methods:

  • Utilized an array of delay lines with progressive delay lengths for passive beam steering.
  • Employed adiabatic tapers as emitter elements for precise adjustment of the effective array aperture and vertical beamwidth.

More Related Videos

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

9.9K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

9.8K

Related Experiment Videos

Last Updated: Aug 23, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.1K
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

9.9K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

9.8K
  • Tuned the wavelength from 1530 to 1600 nm to control beam steering.

    • Main Results:

    • Achieved passive 2D beam coverage ranging from 6.3° × 19° to 23.8° × 40° by adjusting delay lines and taper widths.
    • Main lobe emission throughput was measured to be as low as -2.8 dB.
    • Demonstrated flexible control over beam coverage through wavelength tuning.

    Conclusions:

    • The developed OPA is the first passive line beam scanner offering adjustable beam coverage.
    • This technology provides quick operation and enhanced efficiency compared to traditional active scanners.
    • Presents a significant advancement in OPA technology for efficient beam steering applications.