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.

Photonic integrated circuits based on sampled-grating distributed-Bragg-reflector lasers

2003 ◽  
Author(s):  
Jonathon S. Barton ◽  
Erik J. Skogen ◽  
Milan L. Masanovic ◽  
James Raring ◽  
Matt N. Sysak ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Sampled Grating

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 Compact and low-loss bent hollow waveguides with distributed Bragg reflector

2008 ◽  
Vol 16 (19) ◽  
pp. 15069 ◽  
Author(s):  
Hua-Kung Chiu ◽  
Fu-Li Hsiao ◽  
Chia-Hua Chan ◽  
Chii-Chang Chen
Keyword(s):  
Bragg Reflector ◽  
Low Loss ◽  
Distributed Bragg Reflector ◽  
Hollow Waveguides

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

scholarly journals Вертикально-излучающие лазеры спектрального диапазона 1.55 mum, сформированные методом спекания

2018 ◽  
Vol 44 (1) ◽  
pp. 59
Author(s):  
А.В. Бабичев ◽  
Л.Я. Карачинский ◽  
И.И. Новиков ◽  
А.Г. Гладышев ◽  
С.А. Блохин ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Modulation Frequency ◽  
Cutoff Frequency ◽  
Optical Power ◽  
Single Mode ◽  
Threshold Current ◽  
Bragg Reflector ◽  
Cavity Surface ◽  
Distributed Bragg Reflector ◽  
Aperture Diameter

AbstractThe results of studies on fabrication of vertical-cavity surface-emitting 1.55-μm lasers by fusing AlGaAs/GaAs distributed-Bragg-reflector wafers and an active region based on thin In_0.74Ga_0.26 As quantum wells grown by molecular-beam epitaxy are presented. Lasers with a current aperture diameter of 8 μm exhibit continuous lasing with a threshold current below 1.5 mA, an output optical power of 6 mW, and an efficiency of approximately 22%. Single-mode lasing with a side-mode suppression ratio of 40–45 dB is observed in the entire operating current range. The effective modulation frequency of these lasers is as high as 9 GHz and is limited by the low parasitic cutoff frequency and self-heating.

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