Blazed-grating couplers in unibond SOI

1999 ◽  
Author(s):  
Martin T. W. Ang ◽  
Graham T. Reed ◽  
Adrian P. Vonsovici ◽  
Alan G. R. Evans ◽  
Paul R. Routley ◽  
...  
Keyword(s):  
Grating Couplers ◽  
Blazed Grating

Highly efficient unibond silicon-on-insulator blazed grating couplers

2000 ◽  
Vol 77 (25) ◽  
pp. 4214-4216 ◽  
Author(s):  
T. W. Ang ◽  
G. T. Reed ◽  
A. Vonsovici ◽  
A. G. R. Evans ◽  
P. R. Routley ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Grating Couplers ◽  
Blazed Grating ◽  
Highly Efficient

High‐efficiency blazed grating couplers

1976 ◽  
Vol 29 (5) ◽  
pp. 303-304 ◽  
Author(s):  
Takashi Aoyagi ◽  
Yoshinobu Aoyagi ◽  
Susumu Namba
Keyword(s):  
High Efficiency ◽  
Grating Couplers ◽  
Blazed Grating

scholarly journals Biaxial 360-degree scanning LIDAR using a liquid crystal control

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Seiji Nishiwaki
Keyword(s):  
Liquid Crystal ◽  
Laser Light ◽  
Side Surface ◽  
Parallel Beam ◽  
Grating Couplers ◽  
Autonomous Cars ◽  
Scanning Lidar ◽  
Center Axis ◽  
Circular Grating ◽  
Segmented Electrode

AbstractSophisticated non-mechanical technology for LIDARs is needed to realize safe autonomous cars. We have confirmed the operating principle of a non-mechanical LIDAR by combining concentric circular-grating couplers (CGCs) with a coaxially aligned rod lens. Laser light incident vertically on the center of the inner CGC along the center axis of the lens is radiated from the outer CGC and passes through the side surface of the lens. It is converted to a parallel beam that scans in two axes by applying voltages to two area-segmented electrode layers sandwiching the CGCs and a liquid crystal layer formed on the CGCs. We have demonstrated scanning whose motion ranges were 360 degrees horizontally and 10° vertically. A beam with a spread angle of 0.3° × 0.8° at a minimum swept vertically up to a frequency of 100 Hz and ten equally spaced beams scanned rotationally with a 6-degree cycle variation of spread of between 0.8° and 3.5°.

Highly efficient broadband blazed grating in resonance domain

2013 ◽  
Vol 102 (20) ◽  
pp. 203114 ◽  
Author(s):  
M. Oliva ◽  
D. Michaelis ◽  
F. Fuchs ◽  
A. Tünnermann ◽  
U. D. Zeitner
Keyword(s):  
Blazed Grating ◽  
Highly Efficient ◽  
Resonance Domain

Broadband multilayer-coated normal incidence blazed grating with ~10% diffraction efficiency through the 13-16 nm wavelength region

2009 ◽  
Vol 34 (6) ◽  
pp. 818 ◽  
Author(s):  
Lichao Zhang ◽  
Hui Lin ◽  
Chunshui Jin ◽  
Hongjun Zhou ◽  
Tonglin Huo
Keyword(s):  
Diffraction Efficiency ◽  
Wavelength Region ◽  
Normal Incidence ◽  
Blazed Grating

Air-Suspended SU-8 Polymer Waveguide Grating Couplers

2016 ◽  
Vol 34 (17) ◽  
pp. 3966-3971 ◽  
Author(s):  
Christoph Prokop ◽  
Steffen Schoenhardt ◽  
Bert Laegel ◽  
Sandra Wolff ◽  
Arnan Mitchell ◽  
...  
Keyword(s):  
Grating Couplers ◽  
Waveguide Grating ◽  
Polymer Waveguide
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