Explanipedia

Out-of-Plane Optical Coupling to Photonic Integrated Circuits Using Turning-Mirror Lens Arrays Open

Kamil Gradkowski, Peter O’Brien · 2025

Solder-Reflow Resistant Thermoplastic for Optical Coupling Open

Kamil Gradkowski, Gabrie Hoogland, Peter M. Johnson, Janne van Gisbergen, Young-Joon Choi , et al. · 2025

Micro-Thermoelectric Coolers for On-Chip Thermal Management of Integrated Photonic Devices Open

Rajvinder Kaur, Amit Tanwar, Peter O’Brien, Kafil M. Razeeb · 2025

Etching-Free Fabrication and Integration of 45° Micro-Mirror for Surface-Compatible Photonic Packaging Open

Saif Wakeel, Matthew Hall, Padraic E. Morrissey, JunSu Lee, How Yuan Hwang , et al. · 2024

we demonstrate how micro-mirrors can enable surface-normal coupling of light to a photonic integrated circuit (PIC) equipped with edge couplers. Most micro-mirrors are fabricated using etching techniques with a crystallographic direction d…

Packaging of micro-lens arrays to photonic integrated circuits using beam shape evaluation Open

Kamil Gradkowski, Padraic E. Morrissey, Peter O’Brien · 2024

We propose a method for aligning and attaching micro-lens arrays to photonic integrated circuits (PICs). Unlike the conventional approach of assessing power coupled to a fiber directly, our method utilizes a beam profiler. This profiler al…

Correction: Integrated silicon photonic MEMS Open

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari, Pierre Edinger, Gaehun Jo , et al. · 2024

Substrate integrated micro-thermoelectric coolers in glass substrate for next-generation photonic packages Open

Parnika Gupta, Amit Tanwar, Xiuyun He, Kamil Gradkowski, Kafil M. Razeeb , et al. · 2024

Managing the temperature of photonic chips within intricate electro-optic packages poses a notable challenge concerning the thermal crosstalk between the photonic chip, electronic chip, and the chip–fiber connection point. This is a multif…

Micro-transfer printing of thick optical components using a tether-free UV-curable approach Open

Saif Wakeel, Padraic E. Morrisey, Muhammet Genç, Prasanna Ramaswamy, Robert Bernson , et al. · 2023

Micro-transfer printing (μTP) has been widely used to integrate photonic components, such as lasers, modulators, photodetectors, micro-LEDs, on Si photonic platforms. There is a push toward the μTP of optical components in photonics packag…

Integrated silicon photonic MEMS Open

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari, Pierre Edinger, Gaehun Jo , et al. · 2023

Demonstration of a Single-Mode Expanded-Beam Connectorized Module for Photonic Integrated Circuits Open

Kamil Gradkowski, D. Stegall, David A. Mackey, Alan Naughton, T. L. Smith , et al. · 2023

We present the optical and mechanical designs of an optically-pluggable package for photonic integrated circuits (PICs). Using off-the-shelf micro-optical components, low-loss (∼2 dB) expanded-beam connection between an edge-coupled SiN-ba…

3D-printed facet-attached microlenses for advanced photonic system assembly Open

Yilin Xu, Pascal Maier, Mareike Trappen, Philipp‐Immanuel Dietrich, Matthias Blaicher , et al. · 2023

Wafer-level mass production of photonic integrated circuits (PIC) has become a technological mainstay in the field of optics and photonics, enabling many novel and disrupting a wide range of existing applications. However, scalable photoni…

Angled Flip-Chip Integration of VCSELs on Silicon Photonic Integrated Circuits Open

Mehdi Jahed, Alexander Caut, Jeroen Goyvaerts, Marc Rensing, Magnus Karlsson , et al. · 2022

An investigation of angled flip-chip integration of a singlemode 850 nm vertical-cavity surface-emitting laser (VCSEL) on a silicon nitride photonic integrated circuit (PIC) is presented. Using numerical FDTD simulations, we consider the c…

Wavelength selection in focusing non-uniform grating couplers: A coupling efficiency curve asymmetry and bandwidth analysis Open

Luca Zagaglia, Francesco Floris, Peter O’Brien · 2022

We report a combined experimental and computational investigation of the multi-wavelength response of a series of focusing non-uniform grating couplers designed on multiple SOI thicknesses interfaced with two different fiber coupling schem…

Wide Area Uniform Illumination Scheme Using LED Matrix for Optogenetic Cardiac Pacing Open

Ida Izadi, Vanessa Dusend, Abdulaziz Takrouni, Noreen Nudds, Kamil Gradkowski , et al. · 2021

Control of heart rhythm is vital in the case of arrhythmia. Cardiac optogenetics is a promising technique to replace electrical stimulation in a next generation of pacemakers and defibrillators. Therefore, further research towards optimizi…

Reframing urban and regional ‘development’ for ‘left behind’ places Open

Danny MacKinnon, Louise Kempton, Peter O’Brien, Emma Ormerod, Andy Pike , et al. · 2021

The recent wave of populism has focused attention on ‘left behind’ places as hotspots of discontent. Seeking to remedy their neglect in urban and regional studies, the aim of this paper is to engage with the problems of ‘left behind’ place…

Dataset for: CORNERSTONE's silicon photonics rapid prototyping platforms: Current status and future outlook Open

Callum G. Littlejohns, D.M. Rowe, Han Du, Ke Li, Weiwei Zhang , et al. · 2020

Dataset for CORNERSTONE’s silicon photonics rapid prototyping platforms: Current status and future outlook published in Applied Sciences.

CORNERSTONE’s Silicon Photonics Rapid Prototyping Platforms: Current Status and Future Outlook Open

Callum G. Littlejohns, David J. Rowe, Han Du, Ke Li, Weiwei Zhang , et al. · 2020

The field of silicon photonics has experienced widespread adoption in the datacoms industry over the past decade, with a plethora of other applications emerging more recently such as light detection and ranging (LIDAR), sensing, quantum ph…

A Non-Mechanical Multi-Wavelength Integrated Photonic Beam Steering System Open

Naif Alshamrani, Andrew Grieco, A. Friedman, Karl Johnson, Myun‐Sik Kim , et al. · 2020

In this work we experimentally demonstrate a fully packaged one-dimensional beam steering system that is based on a fully CMOS compatible silicon photonics platform. This configuration enables multi-wavelength operation and is suitable for…

Guest Editorial: Special Issue on Optical Interconnects Open

Tian Gu, Lionel C. Kimerling, Ashkan Seyedi, Thomas Schrans, Jürgen Michel , et al. · 2020

The articles in this special section focus on optical interconnects. These papers present the most recent developments in this field with extensiveness and depth, while ensuring the inclusion of the highest quality work. Large-scale data c…

Silicon photonics-based laser Doppler vibrometer array for carotid-femoral pulse wave velocity (PWV) measurement Open

Yanlu Li, Louise Marais, Hakim Khettab, Zhiheng Quan, Søren Aasmul , et al. · 2020

Pulse wave velocity (PWV) is a reference measure for aortic stiffness, itself an important biomarker of cardiovascular risk. To enable low-cost and easy-to-use PWV measurement devices that can be used in routine clinical practice, we have …

MORPHIC: Programmable photonic circuits enabled by silicon photonic MEMS Open

Wim Bogaerts, Hamed Sattari, Pierre Edinger, Alain Yuji Takabayashi, Iman Zand , et al. · 2020

In the European project MORPHIC we develop a platform for programmable silicon photonic circuits enabled by waveguide-integrated micro-electro-mechanical systems (MEMS). MEMS can add compact, and low-power phase shifters and couplers to an…

Silicon Photonic 2.5D Multi-Chip Module Transceiver for High-Performance Data Centers Open

Nathan Abrams, Qixiang Cheng, Madeleine Glick, Moises Jezzini, Padraic E. Morrissey , et al. · 2020

Widespread adoption of silicon photonics into datacenters requires that the integration of the driving electronics with the photonics be an essential component of transceiver development. In this article, we describe our silicon photonic t…

High-power single transverse and polarization mode VCSEL for silicon photonics integration Open

Erik Haglund, Mehdi Jahed, Johan Gustavsson, Anders Larsson, Jeroen Goyvaerts , et al. · 2019

We demonstrate a 6.5 mW single transverse and polarization mode GaAs-based oxide-confined VCSEL at 850 nm. High power is enabled by a relatively large oxide aperture and an epitaxial design for low resistance, low optical loss, and high sl…

Ultralow-crosstalk, strictly non-blocking microring-based optical switch Open

Qixiang Cheng, Liang Dai, Nathan Abrams, Yu‐Han Hung, Padraic E. Morrissey , et al. · 2019

We report on the first monolithically integrated microring-based optical switch in the switch-and-select architecture. The switch fabric delivers strictly non-blocking connectivity while completely canceling the first-order crosstalk. The …

6.5 mW single mode and polarization stable 850-nm VCSEL for silicon photonics integration Open

J. Gustavsson, Emanuel P. Haglund, Mehdi Jahed, Anders Larsson, Jeroen Goyvaerts , et al. · 2019

About the authors Open

Andy Pike, Peter O’Brien, Tom Strickland · 2019

References Open

Andy Pike, Peter O’Brien, Tom Strickland, Graham Thrower, John Tomaney · 2019

Silicon Photonic MEMS: Exploiting Mechanics at the Nanoscale to Enhance Photonic Integrated Circuits Open

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi, Yu Zhang, Pierre Edinger , et al. · 2019

With the maturing and the increasing complexity of Silicon Photonics technology, novel avenues are pursued to reduce power consumption and to provide enhanced functionality: exploiting mechanical movement in advanced Silicon Photonic Integ…

Comparing Laser Hybrid-Integration and Fiber Coupling With Standard Grating Couplers on Si-PICs Open

Luca Zagaglia, Francesco Floris, Lee Carroll, Peter O’Brien · 2018

We compare the simulated optical insertion-losses and fabrication-tolerances of a micro-optical bench (MOB) for laser hybrid-integration on the 220nm Silicon-on-Insulator (SOI) photonic-platform to standard fiber-to-grating coupling. Our m…

Co-optimizing grating couplers for hybrid integration of InP and SOI photonic platforms Open

Marco Passoni, Francesco Floris, How Yuan Hwang, Luca Zagaglia, Lee Carroll , et al. · 2018

Grating couplers are widely used optical interfaces in integrated photonics, especially on the Silicon-On-Insulator (SOI) platform. Their design has been optimized for coupling light between a Photonic Integrated Circuit (PIC) and a single…

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