Research Explorer

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Researcher

Umar Khan

Awards & Distinctions

70 Results

2024

Building general-purpose programmable photonic chips: opportunities and challenges

Wim BogaertsHong DengXiangfeng ChenLukas Van IseghemIman ZandYu ZhangYichen LiuAladdin Al HaffarPierre EdingerGaehun Jo et al.

Development of electrical and optical packaging for silicon photonic MEMS

Arun Kumar MallikJun Su LeeSean CollinsCleitus AntonyUmar KhanPierre EdingerGaehun JoIman ZandFrank NiklausKristinn B. Gylfason et al.

General-purpose programmable photonic circuits

Wim BogaertsYu ZhangXiangfeng ChenHong DengLukas Van IseghemYichen LiuAdam BarzanjiIman ZandAntônio Ribeiro Alves JúniorUmar Khan et al.

2023

A MEMS tunable phase monitor with integrated photodiode read-out for silicon photonic circuits

Pierre EdingerAlain Yuji TakabayashiCleitus AntonyPeter VerheyenUmar KhanWim BogaertsNiels QuackKristinn B. Gylfason

Capturing the effects of spatial process variations in silicon photonic circuits

Yufei XingJiaxing DongUmar KhanWim Bogaerts

A1 Journal Article in ACS PHOTONICS

Integrated silicon photonic MEMS

Niels QuackAlain Yuji TakabayashiHamed SattariPierre EdingerGaehun JoSimon J. BleikerCarlos Errando-HerranzKristinn B. GylfasonFrank NiklausUmar Khan et al.

A1 Journal Article in MICROSYSTEMS & NANOENGINEERING

Low-power actuators for programmable photonic processors

Umar KhanIman ZandLukas Van IseghemPierre EdingerGaehun JoSimon J. BleikerAlain Y. TakabayashiCleitus AntonyMoises JezziniGiuseppe Talli et al.

Reverse synthesis for the configuration of coupled ring resonators

Xiangfeng ChenUmar KhanWim Bogaerts

Scaling programmable silicon photonics circuits

Wim BogaertsNagarjun Katta Pradeep KumarLukas Van IseghemXiangfeng ChenHong DengIman ZandYu ZhangYichen LiuAlain Yuji TakabayashiHamed Sattari et al.

Vacuum-sealed silicon photonic MEMS tunable ring resonator with an independent control over coupling and phase

Pierre EdingerGaehun JoChris Phong Van NguyenAlain Yuji TakabayashiCarlos Errando-HerranzCleitus AntonyGiuseppe TalliPeter VerheyenUmar KhanSimon J. Bleiker et al.

A1 Journal Article in OPTICS EXPRESS

2022

A bistable silicon photonic mems phase switch for nonvolatile photonic circuits

Pierre EdingerAlain Yuji TakabayashiCarlos Errando-HerranzUmar KhanCleitus AntonyGiuseppe TalliPeter VerheyenWim BogaertsNiels QuackKristinn B. Gylfason

Add-drop silicon ring resonator with low-power MEMS tuning of phase and coupling

Pierre EdingerChris Phong Van NguyenAlain Yuji TakabayashiCleitus AntonyGiuseppe TalliPeter VerheyenUmar KhanWim BogaertsNiels QuackKristinn B. Gylfason

Large scale programmable photonic circuits using silicon photonic MEMS

Umar KhanIman ZandPierre EdingerGaehun JoSimon J. BleikerAlain Yuji TakabayashiCleitus AntonyJunsu LeeArun Kumar MalikPeter Verheyen et al.

Low power optical phase shifter using liquid crystal actuation on a silicon photonics platform

Lukas Van IseghemEwout PicavetAlain Yuji TakabayashiPierre EdingerUmar KhanPeter VerheyenNiels QuackKristinn B. GylfasonKlaartje De BuysserJeroen Beeckman et al.

A1 Journal Article in OPTICAL MATERIALS EXPRESS

Low power phase shifter using liquid crystal on an integrated silicon photonics platform

Lukas Van IseghemUmar KhanEwout PicavetAlain Yuji TakabayashiPeter VerheyenNiels QuackKlaartje De BuysserJeroen BeeckmanWim Bogaerts

Low voltage tuning of ring resonator on a silicon photonics platform with local liquid crystal deposition

Lukas Van IseghemUmar KhanEwout PicavetA. Y. TakabayashiPeter VerheyenNiels QuackKlaartje De BuysserJeroen BeeckmanWim Bogaerts

Low-power micro-electro-mechanical ring resonators on IMEC's iSiPP50G platform

Pierre EdingerAlain Yuji TakabayashiUmar KhanCleitus AntonyGiuseppe TalliPeter VerheyenWim BogaertsNiels QuackKristinn B. Gylfason

MORPHIC : MEMS enhanced silicon photonics for programmable photonics

Umar KhanIman ZandPierre EdingerGaehun JoSimon J. BleikerAlain Yuji TakabayashiCleitus AntonyMoises JezziniGiuseppe TalliHamed Sattari et al.

Programmable photonic circuits powered by silicon photonic MEMS technology

Wim BogaertsAlain Yuji TakabayashiPierre EdingerGaehun JoArun Kumar MallikCleituis AntonyIman ZandTigers JonuziXiangfeng ChenHamed Sattari et al.

Programmable silicon photonic circuits

Wim BogaertsXiangfeng ChenHong DengLukas Van IseghemMi WangIman ZandYu ZhangYichen LiuNagarjun Katta Pradeep KumarUmar Khan

Programmable silicon photonic circuits powered by MEMS

Wim BogaertsAlain Yuji TakabayashiPierre EdingerGaehun JoIman ZandPeter VerheyenMoises JezziniHamed SattariGiuseppe TalliCleitus Antony et al.

Programmable wavelength filter with double ring loaded MZI

Mi WangXiangfeng ChenUmar KhanWim Bogaerts

A1 Journal Article in SCIENTIFIC REPORTS

Programmable wavelength filters in silicon photonics

Mi WangWim BogaertsUmar Khan

Silicon photonic MEMS for efficient scaling of programmable integrated optics

Niels QuackAlain TakabayashiHamed SattariPierre EdingerGaehun JoSimon J. BleikerCarlos Errando-HerranzKristinn B. GylfasonFrank NiklausUmar Khan et al.

Technologies for large-scale programmable photonic circuits

Wim BogaertsLukas Van IseghemXiangfeng ChenIman ZandHong DengMi WangNagarjun Katta Pradeep KumarUmar Khan

Wafer-level hermetically sealed silicon photonic MEMS

Gaehun JoPierre EdingerSimon J. BleikerXiaojing WangAlain Yuji TakabayashiHamed SattariNiels QuackMoises JezziniJun Su LeePeter Verheyen et al.

A1 Journal Article in PHOTONICS RESEARCH

2021

Comparison between black box and gray box strategies for configuration of feedforward waveguide meshes

Yu ZhangHong DengUmar KhanWim Bogaerts

Configuration and optimization of a programmable coupled-ring loaded Mach-zehnder filter

Mi WangXiangfeng ChenUmar KhanWim Bogaerts

Forward stimulated brillouin scattering in free-standing waveguides on a silicon photonics platform

Khannan RajendranAwanish PandeyAlain Yuji TakabayashiUmar KhanWim BogaertsNiels QuackDries Van Thourhout

General-purpose programmable photonic chips

Wim BogaertsMi WangXiangfeng ChenHong DengIman ZandLukas Van IseghemNagarjun Katta Pradeep KumarUmar Khan

Low-power electro-optic actuators for large-scale programmable photonic circuits

Wim BogaertsLukas Van IseghemPierre EdingerHamed SattariAlain Yuji TakabayashiXiangfeng ChenHong DengPeter VerheyenAntônio Ribeiro Alves JúniorUmar Khan et al.

Programmable photonic circuits

Wim BogaertsLukas Van IseghemMi WangHong DengXiangfeng ChenIman ZandNagarjun Katta Pradeep KumarUmar Khan

Programmable photonic circuits using silicon photonics MEMS

Wim BogaertsAlain Y. TakabayashiPierre EdingerIman ZandGaehun JoHamed SattariPeter VerheyenMoises A. JezziniCleitus AntonyGiuseppe Talli et al.

Programmable silicon photonic circuits

Wim BogaertsLukas Van IseghemXiangfeng ChenIman ZandHong DengMi WangYu ZhangYichen LiuNagarjun Katta Pradeep KumarUmar Khan

Programmable silicon photonics

Wim BogaertsLukas Van IseghemMi WangHong DengIman ZandXiangfeng ChenNagarjun Katta Pradeep KumarUmar Khan

Scalable nano-opto-electromechanical systems in silicon photonics

Niels QuackAlain Yuji TakabayashiHamed SattariPierre EdingerKristinn B. GylfasonGeahun JoFrank NiklausPeter VerheyenMoises JezziniUmar Khan et al.

Silicon photonic microelectromechanical phase shifters for scalable programmable photonics

Pierre EdingerAlain Yuji TakabayashiCarlos Errando-HerranzUmar KhanHamed SattariPeter VerheyenWim BogaertsNiels QuackKristinn B. Gylfason

A1 Journal Article in OPTICS LETTERS

Thermo-mechanical noise measurement of sealed nanobeams on a silicon photonics-MEMS platform

Khannan RajendranAwanish PandeyP. EdingerG. JoAlain Yuji TakabayashiUmar KhanPeter VerheyenNiels QuackFrank NiklausWim Bogaerts et al.

Tutorial : programmable integrated photonics

Wim BogaertsXiangfeng ChenIman ZandMi WangHong DengLukas Van IseghemAbdul RahimUmar Khan

2020

Building large-scale programmable photonic circuits using silicon photonic MEMS

Wim BogaertsPierre EdingerAlain Yuji TakabayashiIman ZandXiangfeng ChenXiaojing WangHamed SattariPeter VerheyenMoises A. JezziniGiuseppe Talli et al.

Column-row addressing of thermo-optic phase shifters for controlling large silicon photonic circuits

Antônio Ribeiro Alves JúniorSibert DeclercqUmar KhanMi WangLukas Van IseghemWim Bogaerts

A1 Journal Article in IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS

Compact silicon photonics circuit to extract multiple parameters for process control monitoring

Yufei XingMi WangAlfonso RuoccoJoris GeesselsUmar KhanWim Bogaerts

A2 Journal Article in OSA CONTINUUM

Correlation between pattern density and linewidth variation in silicon photonics waveguides

Yufei XingJiaxing DongUmar KhanWim Bogaerts

A1 Journal Article in OPTICS EXPRESS

Experimental phase-error extraction and modelling in silicon photonic arrayed waveguide gratings

Umar KhanMartin FiersYufei XingWim Bogaerts

Liquid crystal phase shifter integrated in a silicon photonics platform

Lukas Van IseghemUmar KhanPierre EdingerCarlos Errando-HerranzAlain Yuji TakabayashiHamed SattariKristinn B. GylfasonNiels QuackJeroen BeeckmanWim Bogaerts

MORPHIC : programmable photonic circuits enabled by silicon photonic MEMS

Wim BogaertsHamed SattariPierre EdingerAlain Y. TakabayashiIman ZandXiaojing WangAntônio Ribeiro Alves JúniorMoises A. Jezzini de AndaCarlos Errando-HerranzGiuseppe Talli et al.

Programmable photonic circuits : a flexible way of manipulating light on chips

Wim BogaertsAbdul RahimXiangfeng ChenLukas Van IseghemHong DengMi WangIman ZandAntônio Ribeiro Alves JúniorAlejandro Diaz TormoUmar Khan

Programmable silicon photonic integrated circuits

Wim BogaertsXiangfeng ChenMi WangIman ZandHong DengLukas Van IseghemAntônio Ribeiro Alves JúniorAlejandro Diaz TormoUmar Khan

2019

Designing large-scale photonic integrated circuits (invited)

Umar KhanYufei XingWim Bogaerts

Designing large-scale photonic integrated circuits (invited)

Umar KhanYufei XingWim Bogaerts

Driving and control techniques for large scale programmable photonic circuits

Antônio Ribeiro Alves JúniorUmar KhanLukas Van IseghemMi WangSarah DeclercqWim Bogaerts

Extracting coupling coefficients of directional couplers

Umar KhanYing XingAntônio Ribeiro Alves JúniorWim Bogaerts

Extracting multiple parameters from a compact circuit for performance evaluation

Yufei XingMi WangAlfonso RuoccoJoris GeesselsUmar KhanWim Bogaerts

Generic platform for silicon photonics based on MEMS reconfigurable photonic integrated circuits

Umar KhanBanafsheh AbasahlIman ZandN. QuackK. GylfasonM. JezziniH.Y. HwangM.A.G. PorcelC. Lerma ArceS. Kumar et al.

Layout-aware variability analysis, yield prediction, and optimization in photonic integrated circuits

Wim BogaertsYufei XingUmar Khan

A1 Journal Article in IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS

Parameter extraction, variability analysis and yield prediction of the photonic integrated circuits

Umar KhanYufei XingWim Bogaerts

Photonic integrated circuit design in a foundry+fabless ecosystem

Umar KhanYufei XingYinghao YeWim Bogaerts

A1 Journal Article in IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS

Predicting yield of photonic circuits with wafer-scale fabrication variability

Wim BogaertsYufei XingYinghao YeUmar KhanJiaxing DongJoris GeesselsMartin FiersDomenico SpinaTom Dhaene

Technologies for large-scale programmable photonic circuits

Wim BogaertsAntônio Ribeiro Alves JúniorMi WangLukas Van IseghemHong DengIman ZandXiangfeng ChenUmar Khan

2018

Accurate extraction of fabricated geometry using optical measurement

Yufei XingJiaxing DongSarvagya DwivediUmar KhanWim Bogaerts

A1 Journal Article in PHOTONICS RESEARCH

Controlling parasitics in linear optical processors

Iman ZandBanafsheh AbasahlUmar KhanWim Bogaerts

Effect of fabrication imperfections on the performance of silicon-on-insulator arrayed waveguide gratings

Umar KhanYufei XingWim Bogaerts

From parameter extraction, variability models to yield prediction

Yufei XingJiaxing DongUmar KhanYinghao YeDomenico SpinaTom DhaeneWim Bogaerts

Hierarchical model for spatial variations of integrated photonics

Yufei XingJiaxing DongUmar KhanWim Bogaerts

Layout-aware yield prediction of photonic circuits

Wim BogaertsUmar KhanYufei Xing

Matrix addressing silicon photonics phase shifters using heaters with integrated diodes

Antônio Ribeiro Alves JúniorUmar KhanWim Bogaerts

On-chip beam using lateral leakage

Lukas Van IseghemUmar KhanJeroen BeeckmanWim Bogaerts

The morphic project : enabling large scale programmable photonic circuits using mems

Umar KhanWim BogaertsN. QuackK.B. GylfasonP. VerheyenP. O'BrienC.L. ArceM. Garcia

2017

Behavior model for directional coupler

Yufei XingUmar KhanAntônio Ribeiro Alves JúniorWim Bogaerts

Extracting fabricated geometry on die-level

Yufei XingUmar KhanYinghao YeWim Bogaerts