Publications de Junyin Zhang | EPFL Graph Search

Observation of Fundamental Charge Noise in Electro-Optic Photonic Integrated Circuits

Tobias Kippenberg, Guanhao Huang, Zihan Li, Junyin Zhang

We observed that Lithium Niobate and Lithium Tantalate photonic integrated microresonators exhibit an unexpected Flicker type (i.e. 1/f1.2) scaling in the intrinsic refractive noise spectrum, significantly deviating from the well-established thermorefracti ...

Springer Science and Business Media Deutschland GmbH2024

Piezoelectrically tunable, narrow linewidth photonic integrated extended-DBR lasers

Tobias Kippenberg, Andrey Voloshin, Anat Siddharth, Zheru Qiu, Andrea Bancora, Junyin Zhang

Recent advancements in ultra-low-loss silicon nitride (Si3N4)-based photonic integrated circuits have surpassed fiber lasers in coherence and frequency agility. However, high manufacturing costs of DFB and precise control requirements, as required for self ...

Optica Publishing Group2024

Search for high-mass exclusive diphoton production with tagged protons in proton-proton collisions at √s=13 TeV

Patrick Berger, Rakesh Chawla, Ian Smith, Jung Eung Park, Thomas Mountford, Matthias Finger, Matteo Galli, Maria Isabel Cordero Campana, Xiaoqiang Wang, Jian Zhao, James Gonzalo King, Mirko Kovac, Hua Zhang, Joo Yeon Kim, Jae-Woo Choi, Pedro Camilo de Oliveira e Silva, Young Min Kim, Myun Sik Kim, Gabriele Grosso, Qian Wang, Varun Sharma, Michele De Palma, Hyungjun Lee, Chia-Chun Chen, Siyuan Wang, Özdemir Can Kara, Shivom Sharma, Jian Wang, Yi Zhang, Bokyoung Kim, Rahul Kumar Gupta, Ling Zhou, Mithlesh Kumar, Chenyang Wang, Matthias Wolf, Chang-Hyun Park, Anna Mascellani, Yikai Yang, Zhenyu Wang, Seonwoo Lee, Wei-Hsiang Lin, , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Broadband and turnkey Pockels micro-comb with Monolithic Microwave Resonator

Tobias Kippenberg, Jianqi Hu, Mikhail Churaev, Junyin Zhang

We demonstrate a fully hybrid integrated electrooptic comb generator based on a dispersion engineered thin-film Lithium Tantalate microresonator featuring robust turnkey operation and record-broad >200nm span covering the entire telecommunications S, C, an ...

Institute of Electrical and Electronics Engineers Inc.2024

Ultrabroadband Integrated Triply Resonant Electro-Optic Frequency Comb in Lithium Tantalate

Tobias Kippenberg, Jianqi Hu, Mikhail Churaev, Nikolai Kuznetsov, Zihan Li, Junyin Zhang

We demonstrated an integrated electro-optic frequency comb generator with 450nm span and 29.6GHz spacing, entirely covering optical telecom E-, S-, C-, L-, and U-bands, via monolithic co-integration of microwave and photonics resonators on thin-film lithiu ...

Optica Publishing Group (formerly OSA)2024

Integrated lithium tantalate electro-optic modulator

Tobias Kippenberg, Mikhail Churaev, Junyin Zhang

We demonstrate an integrated lithium tantalate electro-optic Mach-Zehnder modulator exhibiting the voltage-length product of 3.7 V·cm and bandwidth of at least 67 GHz. ...

Institute of Electrical and Electronics Engineers Inc.2024

Observation of Fundamental Charge Noise in Electro-Optic Photonics Integrated Circuits

Tobias Kippenberg, Guanhao Huang, Zihan Li, Junyin Zhang

We observed a novel 1/f-type frequency noise in Lithium Niobate and Lithium Tantalate microresonators, distinct from thermorefractive noise and originating from thermodynamic charge fluctuations, setting the linewidth limits for integrated lasers. A charge ...

Optica Publishing Group (formerly OSA)2024

Lithium tantalate photonic integrated circuits for volume manufacturing

Tobias Kippenberg, Kai Huang, Chen Yang, Mikhail Churaev, Xinru Ji, Yang Chen, Zihan Li, Alisa Davydova, Xi Wang, Junyin Zhang

Electro-optical photonic integrated circuits (PICs) based on lithium niobate (LiNbO3) have demonstrated the vast capabilities of materials with a high Pockels coefficient1,2. They enable linear and high-speed modulators operating at complementary metal–oxi ...

2024

Ultrabroadband thin-film lithium tantalate modulator for high-speed communications

Tobias Kippenberg, Mikhail Churaev, Zihan Li, Junyin Zhang

The continuous growth of global data traffic over the past three decades, along with advances in disaggregated computing architectures, presents significant challenges for optical transceivers in communication networks and high-performance computing system ...

2024

High density lithium niobate photonic integrated circuits

Rui Ning Wang, Tobias Kippenberg, Mikhail Churaev, Anat Siddharth, Zelin Tan, Nikolai Kuznetsov, Zihan Li, Junyin Zhang

Photonic integrated circuits have the potential to pervade into multiple applications traditionally limited to bulk optics. Of particular interest for new applications are ferroelectrics such as Lithium Niobate, which exhibit a large Pockels effect, but ar ...

Nature Portfolio2023