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
(050.7330) Diffraction and gratings : Volume gratings
(060.4510) Fiber optics and optical communications : Optical communications
(120.5800) Instrumentation, measurement, and metrology : Scanners
Zahid Yaqoob, Muzammil A. Arain, and Nabeel A. Riza, "High-Speed Two-Dimensional Laser Scanner based on Bragg Gratings stored in Photothermorefractive Glass," Appl. Opt. 42, 5251-5262 (2003)