Xinru Ji

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (32)

Hybrid integrated multi-lane erbium-doped Si3N4 waveguide amplifiers

Tobias Kippenberg, Xinru Ji, Zheru Qiu

We present the integration of four individual erbium-doped waveguide optical amplifiers on a Si3N4 photonic integrated circuit hybrid integrated with a four-lane semiconductor pump laser diode chip. Each amplifier achieves 15 dB on-chip gain. ...

Optical Society of America2024

Low-temperature and hydrogen-free silicon dioxide cladding for next-generation integrated photonics

Tobias Kippenberg, Anat Siddharth, Xinru Ji, Zheru Qiu, Zihan Li

We demonstrate a process for hydrogen-free low-loss silicon oxide (SiO2) films deposited using S iCl4 and O 2 as precursors. A wide low-loss window from 1260 nm to 1625 nm is achieved at a deposition temperature of 300 ◦C, essential for next generation pho ...

Optical Society of America2024

Large-Scale Photonic Chip Based Pulse Interleaver for Low-Noise Microwave Generation

Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu

We demonstrate a 64-times multiplication of a mode-locked laser’s 217 MHz pulse repetition rate to 14 GHz using an integrated Si3N4 interleaver. Six cascaded stages of Mach-Zehnder interferometers with up to 33 cm long optical delay lines are fully integra ...

Springer Science and Business Media Deutschland GmbH2024

Lithium Tantalate Photonic Integrated Circuits (Student Paper)

Tobias Kippenberg, Mikhail Churaev, Xinru Ji, Zihan Li

We demonstrate a wafer-scale lithium tantalate photonic platform with loss as low as 5.5 dB m(-1). Mach-Zehnder modulators with a 40 GHz electro-optical bandwidth and a 1.96 V center dot cm voltage-length product, along with microresonators supporting diss ...

Springer Nature2024

Full C-band tunable integrated Erbium lasers via wafer-scale fabrication

Tobias Kippenberg, Rui Ning Wang, Anat Siddharth, Xinru Ji, Zheru Qiu

We demonstrate an integrated Erbium-based tunable laser using wafer-scale fabrication and ion implantation of silicon nitride photonic integrated circuits, and achieve single-frequency lasing tunable from 1530 nm to 1575 nm covering the entire optical C-ba ...

Institute of Electrical and Electronics Engineers Inc.2024

Lithium tantalate photonic integrated circuits for volume manufacturing

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

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

A hertz-linewidth Erbium laser based on photonic integrated circuits

Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu

We demonstrate a photonic integrated circuit-based Erbium laser by endowing an ultralow-loss silicon nitride integrated optical cavity with Erbium-based gain. The free-running laser achieves 50 Hz intrinsic linewidth, 17 mW output power, and 40 nm waveleng ...