Title :
Miniature Nonmechanical Beam Deflector Based on Bragg Reflector Waveguide With a Number of Resolution Points Larger Than 1000
Author :
Gu, X. ; Shimada, T. ; Matsutani, A. ; Koyama, F.
Author_Institution :
Precision & Intell. Lab., Photonics Integration Syst. Res. Center, Yokohama, Japan
Abstract :
A compact and super-high-resolution beam steering device is demonstrated using a Bragg reflector waveguide. For 37-nm tuning in input wavelengths, we obtained a continuous beam steering angle of 60°. In addition, a divergence angle as small as 0.025 ° is recorded. The maximum divergence angle and steering range in the entire wavelength range of 958-986 nm are 0.040° and 41°, respectively. These data indicate a number of resolution points larger than 1000, which is the highest number for nonmechanical beam deflectors ever reported.
Keywords :
Bragg gratings; beam steering; optical tuning; Bragg reflector waveguide; compact beam steering device; continuous beam steering; input wavelengths; miniature nonmechanical beam deflector; resolution points; super-high-resolution beam steering device; wavelength 37 nm; wavelength 958 nm to 986 nm; Beam steering; Couplings; Distributed Bragg reflectors; Optical fiber devices; Optical waveguides; Propagation losses; Vertical cavity surface emitting lasers; Waveguide devices; waveguides;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2012.2214206
