High-Speed Two-Dimensional Laser Scanner Based On Bragg Gratings Stored In Photothermorefractive Glass
A high-speed free-space wavelength-multiplexed optical scanner with high-speed wavelength selection coupled with narrowband volume Bragg gratings stored in photothermorefractive (PTR) glass is reported. The proposed scanner with no moving parts has a modular design with a wide angular scan range, accurate beam pointing, low scanner insertion loss, and two-dimensional beam scan capabilities. We present a complete analysis and design procedure for storing multiple tilted Bragg-grating structures in a single PTR glass volume (for normal incidence) in an optimal fashion. Because the scanner design is modular, many PTR glass volumes (each having multiple tilted Bragg-grating structures) can be stacked together, providing an efficient throughput with operations in both the visible and the infrared (IR) regions. A proof-of-concept experimental study is conducted with four Bragg gratings in independent PTR glass plates, and both visible and IR region scanner operations are demonstrated. © 2003 Optical Society of America.
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Yaqoob, Zahid; Arain, Muzammil A.; and Riza, Nabeel A., "High-Speed Two-Dimensional Laser Scanner Based On Bragg Gratings Stored In Photothermorefractive Glass" (2003). Scopus Export 2000s. 1639.