On-chip monitoring of far-field patterns using a planar diffractor in a silicon-based optical phased array

2020 ◽  
Vol 45 (21) ◽  
pp. 6058
Author(s):  
Joonsup Shim ◽  
Jong-Bum You ◽  
Hyun-Woo Rhee ◽  
Hyeonho Yoon ◽  
Seong-Hwan Kim ◽  
...  
Author(s):  
SungWon Chung ◽  
Makoto Nakai ◽  
Samer Idres ◽  
Yongwei Ni ◽  
Hossein Hashemi

2021 ◽  
Vol 46 (4) ◽  
pp. 801
Author(s):  
Arash Kazemian ◽  
Pengdi Wang ◽  
Yating Zhuang ◽  
Yasha Yi

2014 ◽  
Vol 39 (4) ◽  
pp. 941 ◽  
Author(s):  
David Kwong ◽  
Amir Hosseini ◽  
John Covey ◽  
Yang Zhang ◽  
Xiaochuan Xu ◽  
...  

2021 ◽  
Vol 42 (2) ◽  
pp. 242-246
Author(s):  
ZHANG Yaoyuan ◽  
◽  
◽  
WANG Rui ◽  
JIANG Ruitao ◽  
...  

Photonics ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 56
Author(s):  
Youngin Kim ◽  
Hyeonho Yoon ◽  
Jong-Bum You ◽  
Minchul Kim ◽  
Hyo-Hoon Park

We demonstrate wide-angle beam-steering using an optical phased array (OPA) with waveguide radiators designed with non-uniform widths to reduce the crosstalk between waveguides. The OPA consists of a silicon based 1 × 16 array of electro-optic phase shifters and end-fire radiators. The 16 radiators were configured with four different widths and a half-wavelength spacing, which can remove the higher-order diffraction patterns in free space. The waveguides showed a low crosstalk of −10.2 dB at a wavelength of 1540 nm. With phase control, the OPA achieved wide beam-steering of over ±80° with a side-lobe suppression of 7.4 dB.


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