Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

IEEE International Conference on Group IV Photonics (GFP)

Enhanced fast light and low-distortion slow light in microring-resonator assisted Mach-Zehnder Sagnac loop on a silicon-on-insulator platform

Xiaowen Sun, Jiayang Wu, Tao Wang, Liang Zhang, Xi Yin, Pan Cao, Fei Li, Xinhong Jiang, Yikai Su

Published Aug 1, 2013• 0 citations
Publisher

Abstract

An optical resonance analogous to electromagnetically induced transparency (EIT) is realized by using a silicon microring resonator assisted Mach-Zehnder Sagnac loop. Enhanced fast light and low-distortion slow light are experimentally achieved with the fabricated device.
DOI
10.1109/group4.2013.6644422

Related papers

Compact tunable electromagnetically induced transparency and Fano resonance on silicon platform

Shuang Zheng, Zhengsen Ruan, Shengqian Gao +8 more

We propose and demonstrate an on-chip coupling resonant system to generate electromagnetically induced transparency (EIT)-like effect and Fano resonance on silicon platform. It is composed of a microring resonator (MRR) and two cascaded Sagnac-loop mirrors (SLMs) assisted Fabry-Perot (FP) cavity on silicon-on-insulator. According to the coupling conditions of the MRR, two cases are studied theoretically. When the MRR is over coupling, EIT-like transmission can be observed. In contrast, Fano resonances can be generated by the condition of under coupling. In the experiment, the add-drop MRR is under coupling, leading to a sharp asymmetric line shape for Fano resonance. The resonance wavelength of the MRR can be dynamically tuned based on thermal-optic effects by tuning the micro-heater. The experiment results show Fano resonances with maximum extinction ratio (ER) of 23.22 dB and maximum slope rate (SR) of 252 dB/nm. Moreover, the wavelength of Fano resonance can be shifted widely with a tuning efficiency of 0.2335 nm/mW.

Optics Express•Oct 9, 2017•61 citations

Electromagnetically induced transparency with a single optomechanical microring resonator

Linhao Ren, Hao Wen, Lei Shi +1 more

An all-optical realization scheme of electromagnetically induced transparency (EIT) in a single silicon optomechanical microring resonator is proposed and demonstrated. Due to the strong mechanical Kerr effect and well-designed microring resonator, two modes with a resonant frequency separation of 292 GHz (2.35 nm) can be tuned into resonance when the control power is about 4.3 µW, and the EIT spectrum is achieved. Our work provides a constructive solution for realizing EIT in a single microcavity with a low mode density. Furthermore, this device is fully integrated on-chip and compatible with current complementary metal-oxide semiconductor (CMOS) processing and has great potential in applications such as light storage, optical sensing, and quantum optics.

Optics Letters•Feb 9, 2022•11 citations

Induced transparency in ring resonator devices

Yanbing Young Zhang

A microring resonator consists of a ring side-coupled to a bus waveguide, where the light exchange is achieved by means of evanescent coupling mechanism.It is a strong candidate for integrated optics due to its advantage of compact size, cascadable input/output ports, and the compatibility of CMOS fabrication.The microring resonator can be used to create many interesting phenomena that are difficult to obtain in other classical configurations.This thesis focuses on the theoretical analysis and experimental realization of induced transparency in optical devices derived from ring resonators.In this thesis, I propose a ring-bus-ring Mach-Zehnder interferometer (RBRMZI) system based on a 3×3 coupler, and show that such a system can generate an electromagnetically induced transparency (EIT)-like spectrum via phase engineering facilitated by interpathways interference between RBR and MZI, instead of separate light interaction in two resonators alone.Both the transfer matrix formalism and the temporal coupled mode theory are investigated to model this induced transparency.The relationship between the two theories is obtained via the energy-conservation and Q-factors.In addition, the EIT-like spectrum in the RBRMZI is experimentally realized using silicon-oninsulator technology.The best RBRMZI device has a transparency with a bandwidth of 0.25nm, a free spectral range of 12nm and a Q-factor of ~6300.With further measurements of the devices having strong ring-bus coupling, we obtain a Q~18000 when the circumference of one ring is 43.4μm and the circumference of the other ring is slightly detuned by ~0.035%.Moreover, we achieve a roundtrip loss as small as ~0.5% of the input energy.The measurement results agree well with theoretical prediction and 2D-FDTD numerical calculations.

•Jan 1, 2012•0 citations

Optical signal processing using silicon resonance and slow-light structures

Linjie Zhou, Jianping Chen, Xiaomeng Sun +2 more

We present our recent work on silicon resonance and slow-light based devices for optical signal processing. Waveguide self-coupling and mutual coupling are used to tailor the waveguide spectral and dispersion characteristics. With selfcoupling, optical resonances are generated with unique transmission performances. Electromagnetically induced transparency (EIT)-like effect appears in cascaded self-coupled waveguides. With mutual coupling between ridge and slot waveguides, group velocity experiences a big jump and optical signal can be delayed for a large range with low distortion by using thermo-optic tuning.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Feb 1, 2012•6 citations

Electromagnetically induced transparency-like effect in microring-Bragg gratings based coupling resonant system

Zecen Zhang, Geok Ing Ng, Ting Hu +5 more

An all-pass microring-Bragg gratings (APMR-BG) based coupling resonant system is proposed and experimentally demonstrated to generate electromagnetically induced transparency (EIT)-like transmission for the first time. The coupling between two light path ways in the micro-ring resonator and the Fabry-Pérot (F-P) resonator formed by two sections of Bragg gratings gives rise to the EIT-like spectrum. This system has the advantage of a small footprint consisting of only one microring resonator and one bus waveguide with Bragg gratings. It also has a large fabrication tolerance as the overlap requirement between the resonance wavelengths of the microring and the F-P resonator is more relaxed. The two most important properties of the EIT-like transmission namely the insertion loss (IL) and the full-width-at-half-maximum (FWHM) have been analytically investigated by utilizing the specially developed model based on the transfer matrix method. The APMR-BG based coupling resonant system was fabricated on a silicon-on-insulator (SOI) platform. The EIT-like transmission with an extinction ratio (ER) of 12 dB, a FWHM of 0.077 nm and a quality factor (Q factor) of 20200 was achieved, which agree well with the simulated results based on our numerical model. A slow light with a group delay of 38 ps was also obtained.

Optics Express•Oct 26, 2016•26 citations

Tunable electromagnetically induced transparency in integrated silicon photonics circuit

Ang Li, Wim Bogaerts

We comprehensively simulate and experimentally demonstrate a novel approach to generate tunable electromagnetically induced transparency (EIT) in a fully integrated silicon photonics circuit. It can also generate tunable fast and slow light. The circuit is a single ring resonator with two integrated tunable reflectors inside, which form an embedded Fabry-Perot (FP) cavity inside the ring cavity. The mode of the FP cavity can be controlled by tuning the reflections using integrated thermo-optic tuners. Under correct tuning conditions, the interaction of the FP mode and the ring resonance mode will generate a Fano resonance and an EIT response. The extinction ratio and bandwidth of the EIT can be tuned by controlling the reflectors. Measured group delay proves that both fast light and slow light can be generated under different tuning conditions. A maximum group delay of 1100 ps is observed because of EIT. Pulse advance around 1200 ps is also demonstrated.

Optics Express•Dec 5, 2017•43 citations
We propose and demonstrate an on-chip coupling resonant system to generate electromagnetically induced transparency (EIT)-like effect and Fano resonance on silicon platform. It is composed of a microring resonator (MRR) and two cascaded Sagnac-loop mirrors (SLMs) assisted Fabry-Perot (FP) cavity on silicon-on-insulator. According to the coupling conditions of the MRR, two cases are studied theoretically. When the MRR is over coupling, EIT-like transmission can be observed. In contrast, Fano resonances can be generated by the condition of under coupling. In the experiment, the add-drop MRR is under coupling, leading to a sharp asymmetric line shape for Fano resonance. The resonance wavelength of the MRR can be dynamically tuned based on thermal-optic effects by tuning the micro-heater. The experiment results show Fano resonances with maximum extinction ratio (ER) of 23.22 dB and maximum slope rate (SR) of 252 dB/nm. Moreover, the wavelength of Fano resonance can be shifted widely with a tuning efficiency of 0.2335 nm/mW.
An all-optical realization scheme of electromagnetically induced transparency (EIT) in a single silicon optomechanical microring resonator is proposed and demonstrated. Due to the strong mechanical Kerr effect and well-designed microring resonator, two modes with a resonant frequency separation of 292 GHz (2.35 nm) can be tuned into resonance when the control power is about 4.3 µW, and the EIT spectrum is achieved. Our work provides a constructive solution for realizing EIT in a single microcavity with a low mode density. Furthermore, this device is fully integrated on-chip and compatible with current complementary metal-oxide semiconductor (CMOS) processing and has great potential in applications such as light storage, optical sensing, and quantum optics.
A microring resonator consists of a ring side-coupled to a bus waveguide, where the light exchange is achieved by means of evanescent coupling mechanism.It is a strong candidate for integrated optics due to its advantage of compact size, cascadable input/output ports, and the compatibility of CMOS fabrication.The microring resonator can be used to create many interesting phenomena that are difficult to obtain in other classical configurations.This thesis focuses on the theoretical analysis and experimental realization of induced transparency in optical devices derived from ring resonators.In this thesis, I propose a ring-bus-ring Mach-Zehnder interferometer (RBRMZI) system based on a 3×3 coupler, and show that such a system can generate an electromagnetically induced transparency (EIT)-like spectrum via phase engineering facilitated by interpathways interference between RBR and MZI, instead of separate light interaction in two resonators alone.Both the transfer matrix formalism and the temporal coupled mode theory are investigated to model this induced transparency.The relationship between the two theories is obtained via the energy-conservation and Q-factors.In addition, the EIT-like spectrum in the RBRMZI is experimentally realized using silicon-oninsulator technology.The best RBRMZI device has a transparency with a bandwidth of 0.25nm, a free spectral range of 12nm and a Q-factor of ~6300.With further measurements of the devices having strong ring-bus coupling, we obtain a Q~18000 when the circumference of one ring is 43.4μm and the circumference of the other ring is slightly detuned by ~0.035%.Moreover, we achieve a roundtrip loss as small as ~0.5% of the input energy.The measurement results agree well with theoretical prediction and 2D-FDTD numerical calculations.
We present our recent work on silicon resonance and slow-light based devices for optical signal processing. Waveguide self-coupling and mutual coupling are used to tailor the waveguide spectral and dispersion characteristics. With selfcoupling, optical resonances are generated with unique transmission performances. Electromagnetically induced transparency (EIT)-like effect appears in cascaded self-coupled waveguides. With mutual coupling between ridge and slot waveguides, group velocity experiences a big jump and optical signal can be delayed for a large range with low distortion by using thermo-optic tuning.
An all-pass microring-Bragg gratings (APMR-BG) based coupling resonant system is proposed and experimentally demonstrated to generate electromagnetically induced transparency (EIT)-like transmission for the first time. The coupling between two light path ways in the micro-ring resonator and the Fabry-Pérot (F-P) resonator formed by two sections of Bragg gratings gives rise to the EIT-like spectrum. This system has the advantage of a small footprint consisting of only one microring resonator and one bus waveguide with Bragg gratings. It also has a large fabrication tolerance as the overlap requirement between the resonance wavelengths of the microring and the F-P resonator is more relaxed. The two most important properties of the EIT-like transmission namely the insertion loss (IL) and the full-width-at-half-maximum (FWHM) have been analytically investigated by utilizing the specially developed model based on the transfer matrix method. The APMR-BG based coupling resonant system was fabricated on a silicon-on-insulator (SOI) platform. The EIT-like transmission with an extinction ratio (ER) of 12 dB, a FWHM of 0.077 nm and a quality factor (Q factor) of 20200 was achieved, which agree well with the simulated results based on our numerical model. A slow light with a group delay of 38 ps was also obtained.
We comprehensively simulate and experimentally demonstrate a novel approach to generate tunable electromagnetically induced transparency (EIT) in a fully integrated silicon photonics circuit. It can also generate tunable fast and slow light. The circuit is a single ring resonator with two integrated tunable reflectors inside, which form an embedded Fabry-Perot (FP) cavity inside the ring cavity. The mode of the FP cavity can be controlled by tuning the reflections using integrated thermo-optic tuners. Under correct tuning conditions, the interaction of the FP mode and the ring resonance mode will generate a Fano resonance and an EIT response. The extinction ratio and bandwidth of the EIT can be tuned by controlling the reflectors. Measured group delay proves that both fast light and slow light can be generated under different tuning conditions. A maximum group delay of 1100 ps is observed because of EIT. Pulse advance around 1200 ps is also demonstrated.