An ultra-strong Pockels effect in silicon photonics

2021 ◽  
Author(s):  
Stefan Abel
Keyword(s):  
Silicon Photonics ◽  
Pockels Effect

scholarly journals Strained silicon photonics for Pockels effect based modulation

2017 ◽  
Author(s):  
Mathias Berciano ◽  
Pedro Damas ◽  
Guillaume Marcaud ◽  
Xavier Le Roux ◽  
Paul Crozat ◽  
...  
Keyword(s):  
Silicon Photonics ◽  
Strained Silicon ◽  
Pockels Effect

Pockels effect in strained silicon photonics (Conference Presentation)

2017 ◽  
Author(s):  
Laurent Vivien ◽  
Mathias Berciano ◽  
Pedro Damas ◽  
Guillaume Marcaud ◽  
Xavier Le Roux ◽  
...  
Keyword(s):  
Silicon Photonics ◽  
Strained Silicon ◽  
Pockels Effect

The quantum confined Pockels effect in GaAs-based multi-quantum wells

1999 ◽  
Vol 09 (PR2) ◽  
pp. Pr2-37 ◽  
Author(s):  
O. Krebs ◽  
P. Voisin ◽  
D. Rondi ◽  
J. L. Gentner ◽  
L. Goldstein ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Pockels Effect ◽  
Quantum Confined

Introduction of a Novel Sample Preparation Technique for the Failure Analysis of Silicon Integrated Photonics Modules

2019 ◽  
Author(s):  
Pradip Sairam Pichumani ◽  
Fauzia Khatkhatay
Keyword(s):  
Sample Preparation ◽  
Failure Analysis ◽  
Silicon Photonics ◽  
Cmos Technology ◽  
Single Step ◽  
Oxide Semiconductor ◽  
Disruptive Technology ◽  
Preparation Technique ◽  
Test Vehicle ◽  
Sample Preparation Technique

Abstract Silicon photonics is a disruptive technology that aims for monolithic integration of photonic devices onto the complementary metal-oxide-semiconductor (CMOS) technology platform to enable low-cost high-volume manufacturing. Since the technology is still in the research and development phase, failure analysis plays an important role in determining the root cause of failures seen in test vehicle silicon photonics modules. The fragile nature of the test vehicle modules warrants the development of new sample preparation methods to facilitate subsequent non-destructive and destructive analysis methods. This work provides an example of a single step sample preparation technique that will reduce the turnaround time while simultaneously increasing the scope of analysis techniques.

scholarly journals A universal 3D imaging sensor on a silicon photonics platform

Nature ◽  
2021 ◽  
Vol 590 (7845) ◽  
pp. 256-261
Author(s):  
Christopher Rogers ◽  
Alexander Y. Piggott ◽  
David J. Thomson ◽  
Robert F. Wiser ◽  
Ion E. Opris ◽  
...  
Keyword(s):  
Silicon Photonics ◽  
3D Imaging ◽  
Imaging Sensor

scholarly journals Optical Voltage Transformer Based on FBG-PZT for Power Quality Measurement

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2699
Author(s):  
Marceli N. Gonçalves ◽  
Marcelo M. Werneck
Keyword(s):  
Power System ◽  
Power Quality ◽  
Distribution System ◽  
Electrical Power ◽  
Quality Measurement ◽  
Pockels Effect ◽  
Electrical Power System ◽  
Voltage Transformer ◽  
Technical Literature ◽  
Distribution Lines

Optical Current Transformers (OCTs) and Optical Voltage Transformers (OVTs) are an alternative to the conventional transformers for protection and metering purposes with a much smaller footprint and weight. Their advantages were widely discussed in scientific and technical literature and commercial applications based on the well-known Faraday and Pockels effect. However, the literature is still scarce in studies evaluating the use of optical transformers for power quality purposes, an important issue of power system designed to analyze the various phenomena that cause power quality disturbances. In this paper, we constructed a temperature-independent prototype of an optical voltage transformer based on fiber Bragg grating (FBG) and piezoelectric ceramics (PZT), adequate to be used in field surveys at 13.8 kV distribution lines. The OVT was tested under several disturbances defined in IEEE standards that can occur in the electrical power system, especially short-duration voltage variations such as SAG, SWELL, and INTERRUPTION. The results demonstrated that the proposed OVT presents a dynamic response capable of satisfactorily measuring such disturbances and that it can be used as a power quality monitor for a 13.8 kV distribution system. Test on the proposed system concluded that it was capable to reproduce up to the 41st harmonic without significative distortion and impulsive surges up to 2.5 kHz. As an advantage, when compared with conventional systems to monitor power quality, the prototype can be remote-monitored, and therefore, be installed at strategic locations on distribution lines to be monitored kilometers away, without the need to be electrically powered.

scholarly journals Study of a Current and Voltage Polarization Sensor Network

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4528
Author(s):  
Artur de Araujo Silva ◽  
Claudio Floridia ◽  
Joao Batista Rosolem
Keyword(s):  
Sensor Network ◽  
Sensor Node ◽  
Spectral Band ◽  
Polarization Degree ◽  
Pockels Effect ◽  
Voltage Distribution ◽  
Medium Voltage ◽  
Voltage Sensors ◽  
Polarization Sensor ◽  
A Current

Sensors based on polarization are suitable for application in power grids due to their excellent characteristics, such as high electrical insulation, non-magnetic saturation, oil-free, no risk of explosive failures, and high bandwidth. Utility companies are incorporating new technologies that are driving the evolution of electrical systems. Thus, it is interesting to evaluate the possibility of using polarization sensors in a network configuration. In this work, we present an experimental study of a current and voltage polarization sensor network applied to a medium voltage distribution grid. The current sensor is based on the Faraday effect, and the voltage sensor uses the Pockels effect. Both sensors use a 90° polarization degree between the two output ports to compensate for the various impairments on the measurements by applying the difference-over-sum. The network uses a DWDM topology centered at the 1550 nm range, and both current and voltage sensors in this work used this spectral band. We evaluated the sensor node in terms of accuracy according to IEC standard 61869-10 and IEC standard 61869-11. Considering that an important application of this sensor network is in the aerial cable of medium voltage networks, sensor node accuracy was also estimated in the presence of cable vibration. The calculated power budget of the proposed network indicates that reaching ten nodes of current and voltage sensors in a 10 km optical link is possible, which is enough for a medium urban voltage distribution network.

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