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Scott A. Reynolds  - - - 
Top co-authors See all
M. Nedeljkovic

88 shared publications

Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK

Ali Z. Khokhar

51 shared publications

Univ. of Southampton (United Kingdom)

Vittorio M. N. Passaro

41 shared publications

Electrical and Information Engineering, Politecnico di Bari, Bari, ba Italy 70125 ()

Youfang Hu

27 shared publications

Univ. of Southampton (United Kingdom)

Goran Z. Mashanovich

16 shared publications

Optoelectronics Research Centre, University of Southampton, University Road, Southampton, Hampshire SO17 1BJ, UK

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Publication Record
Distribution of Articles published per year 
(2014 - 2018)
Total number of journals
published in
 
6
 
Publications See all
Article 4 Reads 0 Citations Ultrafast perturbation maps as a quantitative tool for testing of multi-port photonic devices Kevin Vynck, Nicholas J. Dinsdale, Bigeng Chen, Roman Bruck,... Published: 08 June 2018
Nature Communications, doi: 10.1038/s41467-018-04662-2
DOI See at publisher website ABS Show/hide abstract
Advanced photonic probing techniques are of great importance for the development of non-contact wafer-scale testing of photonic chips. Ultrafast photomodulation has been identified as a powerful new tool capable of remotely mapping photonic devices through a scanning perturbation. Here, we develop photomodulation maps into a quantitative technique through a general and rigorous method based on Lorentz reciprocity that allows the prediction of transmittance perturbation maps for arbitrary linear photonic systems with great accuracy and minimal computational cost. Excellent agreement is obtained between predicted and experimental maps of various optical multimode-interference devices, thereby allowing direct comparison of a device under test with a physical model of an ideal design structure. In addition to constituting a promising route for optical testing in photonics manufacturing, ultrafast perturbation mapping may be used for design optimization of photonic structures with reconfigurable functionalities.
PREPRINT 0 Reads 0 Citations Ultrafast perturbation maps as a quantitative tool for testing of multi-port photonic devices Kevin Vynck, Nicholas J. Dinsdale, Bigeng Chen, Roman Bruck,... Published: 19 February 2018
ABS Show/hide abstract
Advanced photonic probing techniques are of great importance for the development of non-contact wafer-scale testing of photonic chips. Ultrafast photomodulation has been identified as a powerful new tool capable of remotely mapping photonic devices through a scanning perturbation. Here, we develop photomodulation maps into a quantitative technique through a general and rigorous method based on Lorentz reciprocity that allows the prediction of transmittance perturbation maps for arbitrary linear photonic systems with great accuracy and minimal computational cost. Excellent agreement is obtained between predicted and experimental maps of various optical multimode-interference devices, thereby allowing direct comparison of a device under test with a physical model of an ideal design structure. In addition to constituting a promising route for optical testing in photonics manufacturing, ultrafast perturbation mapping may be used for design optimization of photonic structures with reconfigurable functionalities.
Conference 0 Reads 0 Citations Mid-infrared Ge-on-Si electro-absorption modulator Milos Nedeljkovic, Nannicha Hattasan, Ali Z. Khokhar, Scott ... Published: 01 August 2017
2017 IEEE 14th International Conference on Group IV Photonics (GFP), doi: 10.1109/group4.2017.8082169
DOI See at publisher website
REFERENCE-ENTRY 0 Reads 0 Citations Silicon Photonics David J. Thomson, Callum G. Littlejohns, Stevan Stankovic, M... Published: 15 December 2015
Wiley Encyclopedia of Electrical and Electronics Engineering, doi: 10.1002/047134608x.w8287
DOI See at publisher website
Article 1 Read 9 Citations Silicon Photonic Waveguides and Devices for Near- and Mid-IR Applications Goran Z. Mashanovich, Frederic Y. Gardes, David J. Thomson, ... Published: 01 July 2015
IEEE Journal of Selected Topics in Quantum Electronics, doi: 10.1109/JSTQE.2014.2381469
DOI See at publisher website
Article 2 Reads 2 Citations Design Procedure and Fabrication of Reproducible Silicon Vernier Devices for High-Performance Refractive Index Sensing Benedetto Troia, Ali Z. Khokhar, Milos Nedeljkovic, Scott A.... Published: 10 June 2015
Sensors, doi: 10.3390/s150613548
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
In this paper, we propose a generalized procedure for the design of integrated Vernier devices for high performance chemical and biochemical sensing. In particular, we demonstrate the accurate control of the most critical design and fabrication parameters of silicon-on-insulator cascade-coupled racetrack resonators operating in the second regime of the Vernier effect, around 1.55 μm. The experimental implementation of our design strategies has allowed a rigorous and reliable investigation of the influence of racetrack resonator and directional coupler dimensions as well as of waveguide process variability on the operation of Vernier devices. Figures of merit of our Vernier architectures have been measured experimentally, evidencing a high reproducibility and a very good agreement with the theoretical predictions, as also confirmed by relative errors even lower than 1%. Finally, a Vernier gain as high as 30.3, average insertion loss of 2.1 dB and extinction ratio up to 30 dB have been achieved.
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