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Related Experiment Video

Updated: May 27, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
12:14

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

Giant and high-resolution beam steering using slow-light waveguide amplifier.

Xiaodong Gu1, Toshikazu Shimada, Fumio Koyama

  • 1Photonics Integration System Research Center, Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259-R2-22, Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan. gu.xiaodong@ms.pi.titech.ac.jp

Optics Express
|November 24, 2011
PubMed
Summary
This summary is machine-generated.

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We developed a novel beam-steering device using a slow-light waveguide amplifier. This technology achieves over 40 degrees of beam deflection by tuning input light wavelength, enabling high-resolution applications.

Area of Science:

  • Photonics and Optical Engineering
  • Waveguide Technology
  • Beam Steering

Background:

  • Traditional beam-steering methods often face limitations in terms of speed, size, or angular range.
  • Slow-light phenomena in optical waveguides offer unique opportunities for manipulating light propagation.

Purpose of the Study:

  • To introduce and model a novel beam-steering device utilizing a slow-light waveguide amplifier.
  • To demonstrate the potential for large-angle beam deflection and high resolution.

Main Methods:

  • The proposed device employs a Bragg reflector waveguide where input light is coupled.
  • Beam steering is achieved by tuning the wavelength of the input light.
  • Modeling was performed to characterize the device's performance.

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Last Updated: May 27, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
12:14

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
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High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

Published on: September 22, 2017

Main Results:

  • A tunable deflection-angle range exceeding 40 degrees was achieved.
  • The device exhibits high beam coherency and a flat intensity distribution.
  • An ultra-large number of resolution-points (over 1,000) was demonstrated for short devices (few millimeters).

Conclusions:

  • The novel slow-light waveguide amplifier offers a promising approach for compact and high-performance beam-steering devices.
  • The demonstrated large steering range and high resolution open possibilities for advanced optical systems.