scholarly journals A silicon-on-insulator polarization diversity scheme in the mid-infrared

2015 ◽  
Vol 23 (11) ◽  
pp. 15029 ◽  
Author(s):  
Jing Wang ◽  
Chunghun Lee ◽  
Ben Niu ◽  
Haiyang Huang ◽  
You Li ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Polarization Diversity ◽  
Mid Infrared ◽  
Diversity Scheme

scholarly journals Towards lab-on-chip ultrasensitive ethanol detection using photonic crystal waveguide operating in the mid infrared

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ali Rostamian ◽  
Ehsan Madadi-Kandjani ◽  
Hamed Dalir ◽  
Volker J. Sorger ◽  
Ray T. Chen
Keyword(s):  
Photonic Crystal ◽  
Slow Light ◽  
High Sensitivity ◽  
Guided Wave ◽  
Silicon On Insulator ◽  
Group Index ◽  
Photonic Crystal Waveguide ◽  
Mid Infrared ◽  
Lab On Chip ◽  
On Chip

Abstract Thanks to the unique molecular fingerprints in the mid-infrared spectral region, absorption spectroscopy in this regime has attracted widespread attention in recent years. Contrary to commercially available infrared spectrometers, which are limited by being bulky and cost-intensive, laboratory-on-chip infrared spectrometers can offer sensor advancements including raw sensing performance in addition to use such as enhanced portability. Several platforms have been proposed in the past for on-chip ethanol detection. However, selective sensing with high sensitivity at room temperature has remained a challenge. Here, we experimentally demonstrate an on-chip ethyl alcohol sensor based on a holey photonic crystal waveguide on silicon on insulator-based photonics sensing platform offering an enhanced photoabsorption thus improving sensitivity. This is achieved by designing and engineering an optical slow-light mode with a high group-index of n g  = 73 and a strong localization of modal power in analyte, enabled by the photonic crystal waveguide structure. This approach includes a codesign paradigm that uniquely features an increased effective path length traversed by the guided wave through the to-be-sensed gas analyte. This PIC-based lab-on-chip sensor is exemplary, spectrally designed to operate at the center wavelength of 3.4 μm to match the peak absorbance for ethanol. However, the slow-light enhancement concept is universal offering to cover a wide design-window and spectral ranges towards sensing a plurality of gas species. Using the holey photonic crystal waveguide, we demonstrate the capability of achieving parts per billion levels of gas detection precision. High sensitivity combined with tailorable spectral range along with a compact form-factor enables a new class of portable photonic sensor platforms when combined with integrated with quantum cascade laser and detectors.

scholarly journals Silicon-on-insulator mid-infrared planar concave grating based (de)multiplexer

2013 ◽  
Author(s):  
M. Muneeb ◽  
X. Chen ◽  
E. Ryckeboer ◽  
A. Malik ◽  
G. Z. Mashanovich ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Mid Infrared ◽  
Planar Concave Grating ◽  
Concave Grating

scholarly journals Mid-infrared wavelength division (de)multiplexer using an interleaved angled multimode interferometer on the silicon-on-insulator platform

2014 ◽  
Vol 39 (6) ◽  
pp. 1406 ◽  
Author(s):  
Y. Hu ◽  
T. Li ◽  
D. J. Thomson ◽  
X. Chen ◽  
J. Soler Penades ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Mid Infrared ◽  
Infrared Wavelength ◽  
Wavelength Division

scholarly journals Polarization diversity scheme for reach extension of WDM/TDM gigabit passive optical network up to 60 km using quantum dot semiconductor optical amplifiers

Doklady BGUIR ◽  
2021 ◽  
Vol 19 (4) ◽  
pp. 80-84
Author(s):  
A. D. Tussupov ◽  
A. T. Tokhmetov ◽  
N. I. Listopad
Keyword(s):  
Quantum Dot ◽  
Optical Networks ◽  
Optical Amplifiers ◽  
Semiconductor Optical Amplifiers ◽  
Passive Optical Network ◽  
Advanced Technology ◽  
Polarization Sensitivity ◽  
Polarization Diversity ◽  
Design Work ◽  
Diversity Scheme

Gigabit passive optical networks (GPON) are the most advanced technology. The data transfer rate is 2.5 Gbps for downstream and 1.25 Gbps for upstreams. But this network architecture has a limited physical network length of 20 km. This is due to the high budgetary losses of the network. This restriction of access makes the network difficult to access for subscribers located far from the facilities of the telecom operator, and coverage of remote settlements is quite costly (cost of design work, fiber, laying of fiber-optic cable), thereby complicating the elimination of the digital divide between the city, the suburbs and the countryside. To solve this problem, it is proposed to use quantum dot semiconductor optical amplifiers (QD-SOA), which will expand the GPON reach up to 60 km, which is the limit for the logical length under the current protocols. Quantum dot semiconductor optical amplifiers are promising devices for optical communication technology, but for commercial use they have one disadvantage. They are polarization sensitive. In this paper the authors constructed a polarization diversity scheme to avoid polarization sensitivity of QD-SOAs.

scholarly journals Focusing Polarization Diversity Grating Couplers in Silicon-on-Insulator

2009 ◽  
Vol 27 (5) ◽  
pp. 612-618 ◽  
Author(s):  
Frederik Van Laere ◽  
Wim Bogaerts ◽  
Pieter Dumon ◽  
GÜnther Roelkens ◽  
Dries Van Thourhout ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Polarization Diversity ◽  
Grating Couplers

Dispersion engineering and thermo-optic tuning in mid-infrared photonic crystal slow light waveguides on silicon-on-insulator

2018 ◽  
Vol 43 (22) ◽  
pp. 5504 ◽  
Author(s):  
Yiming Ma ◽  
Bowei Dong ◽  
Bo Li ◽  
Kah-Wee Ang ◽  
Chengkuo Lee
Keyword(s):  
Photonic Crystal ◽  
Slow Light ◽  
Silicon On Insulator ◽  
Mid Infrared ◽  
Dispersion Engineering

scholarly journals Integrated Silicon-on-Insulator Spectrometer With Single Pixel Readout for Mid-Infrared Spectroscopy

2018 ◽  
Vol 24 (6) ◽  
pp. 1-7 ◽  
Author(s):  
Anton Vasiliev ◽  
Muhammad Muneeb ◽  
Jeroen Allaert ◽  
Joris Van Campenhout ◽  
Roel Baets ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Silicon On Insulator ◽  
Mid Infrared ◽  
Mid Infrared Spectroscopy ◽  
Single Pixel
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