Open AccessGiant and high-resolution beam steering using slow-light waveguide amplifier
Author(s) -
Xiaodong Gu,
Takahiro Shimada,
Fumio Koyama
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.022675
Subject(s) - optics , beam steering , waveguide , amplifier , millimeter , beam (structure) , light beam , materials science , wavelength , extremely high frequency , optoelectronics , physics , cmos
We propose a novel beam-steering device based on a slow-light waveguide amplifier. In this paper, we present the idea of this steering technique and show its modeling characteristics. Giant steering of the radiation beam is obtained by tuning the wavelength of input light, which is coupled into the Bragg reflector waveguide. A tunable deflection-angle range can be over 40 degrees. High beam coherency and flat intensity distribution enable us to obtain an ultra-large number of resolution-points over 1,000 for few-millimeter long devices.