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Related Experiment Videos

Free-space wavelength-multiplexed optical scanner demonstration.

Zahid Yaqoob1, Nabeel A Riza

  • 1Photonic Information Processing Systems Laboratory, School of Optics and Center for Research and Education in Optics and Lasers, University of Central Florida, Orlando 32816-2700, USA.

Applied Optics
|September 13, 2002
PubMed
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This study demonstrates a novel no-moving-parts optical scanner using wavelength multiplexing. This device achieves microsecond-speed scanning for large apertures, enabling precise beam control and power shaping for various applications.

Area of Science:

  • Optics and Photonics
  • Optical Engineering
  • Laser Technology

Background:

  • Traditional optical scanners often rely on mechanical components, limiting speed and reliability.
  • The need for high-speed, precise beam steering in applications like free-space optical communication and laser processing is growing.

Purpose of the Study:

  • To experimentally demonstrate a novel free-space wavelength-multiplexed optical scanner (W-MOS) with no moving parts.
  • To showcase the W-MOS's capability for microsecond-speed scanning over large apertures.
  • To present a design incorporating optical amplification and attenuation for beam power modulation.

Main Methods:

  • Utilized fast tunable lasers and planar diffraction gratings as wavelength dispersive elements.
  • Integrated an optical amplifier and variable optical attenuator for scanner response calibration and modulation.

Related Experiment Videos

  • Employed a tunable laser (1560 nm) and a 600-grooves/mm blazed reflection grating for angular scanning.

    • Main Results:

    • Achieved a large angular scan of 12.92 degrees by tuning the laser over an 80-nm bandwidth.
    • Demonstrated microsecond-speed scanning suitable for several-centimeter apertures.
    • Quantified key performance metrics including beam divergence (1.076 mrad), wavelength resolution (0.172 nm), beam-pointing accuracy (0.06 mrad), and insertion loss (4.88 dB).

    Conclusions:

    • The experimental W-MOS successfully demonstrated a no-moving-parts, high-speed optical scanning solution.
    • The integrated optical amplifier and attenuator enable flexible control over scanned laser beam power.
    • This technology offers a promising alternative for applications requiring rapid and precise beam steering.