High-speed two-dimensional laser scanner based on Bragg gratings stored in photothermorefractive glass
Abbreviated Journal Title
SYSTEMS; OPTICS; Optics
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. (C) 2003 Optical Society of America.
"High-speed two-dimensional laser scanner based on Bragg gratings stored in photothermorefractive glass" (2003). Faculty Bibliography 2000s. 4142.