scholarly journals Low-loss fiber-to-chip interface for lithium niobate photonic integrated circuits

2019 ◽  
Vol 44 (9) ◽  
pp. 2314 ◽  
Author(s):  
Lingyan He ◽  
Mian Zhang ◽  
Amirhassan Shams-Ansari ◽  
Rongrong Zhu ◽  
Cheng Wang ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Low Loss

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 Wafer-scale low-loss lithium niobate photonic integrated circuits

2020 ◽  
Vol 28 (17) ◽  
pp. 24452 ◽  
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 Low-Loss Lithium Niobate on Insulator (LNOI) Waveguides of a 10 cm-Length and a Sub-Nanometer Surface Roughness

2018 ◽  
Author(s):  
Rongbo Wu ◽  
Min Wang ◽  
Jian Xu ◽  
Jia Qi ◽  
Wei Chu ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Lithium Niobate ◽  
Integrated Circuits ◽  
Large Scale ◽  
Photonic Integrated Circuits ◽  
Propagation Loss ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Low Loss ◽  
Atomic Force

We develop a technique for realizing lithium niobate on insulator (LNOI) waveguides of a multi-centimeter-length with a propagation loss as low as 0.027 dB/cm. Our technique relies on patterning a chromium (Cr) thin film coated on the top surface of LNOI into a hard mask with a femtosecond laser followed by the chemo-mechanical polishing for structuring the LNOI into the waveguides. The surface roughness on the waveguides is determined to be 0.452 nm with an atomic force microscope (AFM). 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 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
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