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Space-multiplexed optical scanner.

Nabeel A Riza1, Zahid Yaqoob

  • 1Photonic Information Processing Systems Laboratory, School of Optics-Center for Research and Education in Optics and Lasers, University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816-2700, USA. nriza@mail.ucf.edu

Applied Optics
|May 8, 2004
PubMed
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This study presents a novel low-loss two-dimensional optical beam scanner. It achieves large angular scans in both elevation and azimuth directions with an ultrahigh scan space-fill factor.

Area of Science:

  • Photonics and Optical Engineering
  • Optoelectronics
  • Beam Steering Technologies

Background:

  • Traditional optical scanners face limitations in scan range and resolution.
  • Developing compact, high-performance beam steering solutions is crucial for advanced optical systems.

Purpose of the Study:

  • To introduce a novel low-loss two-dimensional optical beam scanner.
  • To demonstrate a large angular scan capability in both elevation and azimuthal directions.
  • To achieve an ultrahigh scan space-fill factor for dense beam arrangements.

Main Methods:

  • The scanner utilizes a space-switched parallel-serial architecture.
  • It incorporates a coarse-scanner module and a fine-scanner module for precise beam control.
  • A one-dimensional version was experimentally demonstrated to validate the concept.

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Main Results:

  • The proposed scanner delivers large angular scans (> 10 degrees) in both elevation and azimuth.
  • It achieves an ultrahigh scan space-fill factor, demonstrated as 900 x 900 distinguishable beams in a 10° x 10° space.
  • The 1D experimental version showed a supercontinuous scan with 100 distinguishable beam spots over a 2.29° range and 1.5-dB optical insertion loss.

Conclusions:

  • The developed optical beam scanner offers significant advantages in scan range and beam density.
  • The parallel-serial architecture provides a scalable solution for high-performance beam steering.
  • This technology has potential applications in areas requiring precise and wide-angle optical beam manipulation.