Ultra-Low Loss Vertical Optical Couplers for 3D Photonic Integrated Circuits

2015 ◽  
Author(s):  
Kuanping Shang ◽  
Shibnath Pathak ◽  
Guangyao Liu ◽  
S. J. B. Yoo
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Low Loss ◽  
Optical Couplers

scholarly journals Wafer-scale low-loss lithium niobate photonic integrated circuits

2020 ◽  
Author(s):  
Kevin Luke ◽  
Prashanta Kharel ◽  
Christian Reimer ◽  
Lingyan He ◽  
Marko Loncar ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Low Loss ◽  
Wafer Scale

scholarly journals Long Low-Loss-Litium Niobate on Insulator Waveguides with Sub-Nanometer Surface Roughness

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 910 ◽  
Author(s):  
Rongbo Wu ◽  
Min Wang ◽  
Jian Xu ◽  
Jia Qi ◽  
Wei Chu ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Integrated Circuits ◽  
Large Scale ◽  
Photonic Integrated Circuits ◽  
Surface Patterning ◽  
Propagation Loss ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Low Loss ◽  
Atomic Force

In this paper, we develop a technique for realizing multi-centimeter-long lithium niobate on insulator (LNOI) waveguides with a propagation loss as low as 0.027 dB/cm. Our technique relies on patterning a chromium thin film coated on the top surface of LNOI into a hard mask with a femtosecond laser followed by chemo-mechanical polishing for structuring the LNOI into the waveguides. The surface roughness on the waveguides was determined with an atomic force microscope to be 0.452 nm. The approach is compatible with other surface patterning technologies, such as optical and electron beam lithographies or laser direct writing, enabling high-throughput manufacturing of large-scale LNOI-based photonic integrated circuits.

scholarly journals Low-loss, compact, spot-size-converter based vertical couplers for photonic integrated circuits

2019 ◽  
Vol 52 (21) ◽  
pp. 214001 ◽  
Author(s):  
P K J Singaravelu ◽  
G C R Devarapu ◽  
Sebastian A Schulz ◽  
Quentin Wilmart ◽  
Stéphane Malhouitre ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Spot Size ◽  
Low Loss

Low-loss fiber-chip coupling by InGaAsP/InP thick waveguides for guided-wave photonic integrated circuits

1994 ◽  
Vol 6 (11) ◽  
pp. 1347-1349 ◽  
Author(s):  
J.F. Vinchant ◽  
P. Pagnod-Rossiaux ◽  
J. Le Bris ◽  
A. Goutelle ◽  
H. Bissessur ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Guided Wave ◽  
Low Loss

Low-loss coupling interfaces between InP-based emitters and Si3N4 photonic integrated circuits

2019 ◽  
Author(s):  
Dimitrios Chatzitheocharis ◽  
Dimitra Ketzaki ◽  
George Dabos ◽  
Konstantinos Vyrsokinos
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Low Loss

Characterization of ultra-short low-loss waveguide bends for compact Photonic Integrated Circuits

1999 ◽  
Author(s):  
M. Rajarajan ◽  
S.SA. Obayya ◽  
B.M.A. Rahman ◽  
K.T.V. Grattan ◽  
H.A. El-Mikati
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Low Loss ◽  
Waveguide Bends

Investigation of Photonic Integrated Circuits with Low-Loss Bragg Gratings

2020 ◽  
Vol 41 (3) ◽  
pp. 229-233
Author(s):  
Manjinder Kaur ◽  
Sanjeev Dewra
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Optical Power ◽  
Grating Period ◽  
Bragg Reflector ◽  
Physical Parameters ◽  
Low Loss ◽  
Distributed Bragg Reflector ◽  
The Impact ◽  
Plasmon Polaritons

AbstractThe impact of physical parameters of uniform fiber Bragg grating (U-FBG) like grating period, length of grating, and width of grating on the performance of U-FBG fiber by using finite differences time domain (FDTD) based on surface plasmon polaritons (SPP) is evaluated. An FBG is similar to a distributed Bragg reflector created in a small segment of optical fiber that reflects some particular wavelengths of light and transmits the other wavelengths. It is observed that the maximum received optical power at the reflected port achieved is −1.67×10-6 w/m2 with silver (Ag) profile material of U-FBG at 0.1 w/m2 input transmission power and wavelength of 1.55 μm with 0.9 μm grating length and 0.2 μm grating width. The result shows that the received optical power is changing by optimizing the physical parameters of U-FBG.

scholarly journals Low-loss compact multilayer silicon nitride platform for 3D photonic integrated circuits

2015 ◽  
Vol 23 (16) ◽  
pp. 21334 ◽  
Author(s):  
Kuanping Shang ◽  
Shibnath Pathak ◽  
Binbin Guan ◽  
Guangyao Liu ◽  
S. J. B. Yoo
Keyword(s):  
Silicon Nitride ◽  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Low Loss
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