activity
20222026
most citedOn-chip single-mode thin film lithium niobate laser based on Sagnac loop reflectors

47 citations · 110 across the 28 of their papers we have counts for

collaborators

28 papers

physics.optics2026

Hybrid-Integrated DFB-Laser-Coupled 1 * 8 Thin-Film Lithium Niobate Modulator Array for High-Speed Parallel Optical Transmitters

Qiyue Hu, Junxia Zhou, Zhe Wang +9

Thin-film lithium niobate (TFLN) electro-optic modulators are attractive for high-speed optical interconnects, but scalable transmitter architectures require not only high modulati…

physics.optics2026

Scalable native signed optical computing enabled by dual-wavelength incoherent multiplexing

Yuan Ren, Yong Zheng, Ruixue Liu +4

Incoherent photonic neural networks (PNNs) provide a robust platform for analog optical computing, yet efficient implementation of native signed operations remains challenging. Exi…

physics.optics2025

Monolithic low-noise erbium-doped thin-film lithium niobate waveguide amplifier with 18 dB fiber to fiber net gain

Mengqi Li, Jianping Yu, Zhe Wang +5

Erbium-doped waveguide amplifiers have captured great attentions in recent years due to the rapid advance of photonic integration materials and fabrication techniques. In this work…

physics.optics2024

An electro-optically tunable arrayed waveguide grating fabricated on thin film lithium niobate

Zhe Wang, 1 Zhiwei Fang, Yiran Zhu +6

We design and fabricate an 8-channel thin film lithium niobate (TFLN) arrayed-waveguide grating (AWG) and demonstrate the electro-optical tunability of the device. The monolithical…

physics.optics2024

An integrated electro-optically tunable multi-channel interference cavity laser

Junxia Zhou, Yiran Zhu, Botao Fu +8

We demonstrated a continuously tunable laser system by butt coupling a reflective semiconductor optical amplifier (RSOA) chip with a thin-film lithium niobate (TFLN) based multi-ch…

physics.optics2024

Compact low-half-wave-voltage thin film lithium niobate electro-optic phase modulator fabricated by photolithography assisted chemo-mechanical etching

Lang Gao, Youting Liang, Jinming Chen +7

This paper presents a compact dual-arm thin film lithium niobate (TFLN) electro-optic phase modulator fabricated using the photolithography-assisted chemo-mechanical etching (PLACE…

physics.optics2024★ 2 cited

An erbium-doped waveguide amplifier on thin film lithium niobate with an output power exceeding 100 mW

Rui Bao, Zhiwei Fang, Jian Liu +6

We demonstrate high-power thin film lithium niobate (TFLN) erbium-doped waveguide amplifier (EDWA) with a maximum on-chip output power of 113 mW and a gain of 16 dB. The on-chip in…

physics.optics2024★ 1 cited

Photonic Neural Network Fabricated on Thin Film Lithium Niobate for High-Fidelity and Power-Efficient Matrix Computation

Yong Zheng, Rongbo Wu, Yuan Ren +5

Photonic neural networks (PNNs) have emerged as a promising platform to address the energy consumption issue that comes with the advancement of artificial intelligence technology,…

physics.optics2024

On-chip wavelength division multiplexing by angled multimode interferometer fabricated on erbium-doped thin film lithium niobate on insulator

Jinli Han, Rui Bao, Rongbo Wu +9

Photonic integrated circuits based on erbium doped thin film lithium niobate on insulator has attracted broad interests with insofar various waveguide amplifiers and microlasers de…

physics.optics2023

Integrated electro-optically tunable narrow-linewidth III-V laser

Yiran Zhu, Shupeng Yu, Zhiwei Fang +8

We demonstrate an integrated electro-optically tunable narrow-linewidth III-V laser with an output power of 738.8 μW and an intrinsic linewidth of 45.55 kHz at the C band. The lase…

physics.optics2023

Thin Film Lithium Niobate Electro-optic Isolator Fabricated by photolithography assisted chemo-mechanical etching (PLACE)

Lang Gao, Youting Liang, Lvbin Song +10

We report a thin-film lithium niobate electro-optic isolator fabricated by photolithography-assisted chemo-mechanical etching in this work. The device demonstrates 39.50 dB isolati…

physics.optics2023★ 1 cited

Erbium-ytterbium co-doped lithium niobate single-mode microdisk laser with an ultralow threshold of 1 uW

Minghui Li, Renhong Gao, Chuntao Li +9

We demonstrate single-mode microdisk lasers in the telecom band with ultra-low thresholds on erbium-ytterbium co-doped thin-film lithium niobate (TFLN). The active microdisk were f…

physics.optics2023★ 4 cited

Generation of Kerr soliton microcomb in a normally dispersed lithium niobate microdisk resonator by mode trimming

Botao Fu, Renhong Gao, Ni Yao +6

Anomalous microresonator dispersion is mandatory for Kerr soliton microcomb formation, which depends critically on the geometry of the microresonator and can hardly be tuned after…

physics.optics2023★ 2 cited

On-chip coherent beam combination of waveguide amplifiers on Er-doped thin film lithium niobate

Rui Bao, Lvbin Song, Zhiwei Fang +9

We demonstrate on-chip coherent beam combination of two waveguide amplifiers on Er-doped thin film lithium niobate (Er: TFLN) platform. Our device is built based on an elect…

physics.optics2023

Ultra-high Q lithium niobate microring monolithically fabricated by photolithography assisted chemo-mechanical etching

Chuntao Li, Jianglin Guan, Jintian Lin +5

Thin-film lithium niobate (TFLN) has been considered as one of the most important platforms for constructing high-performance photonic integrated devices such as electro-optic modu…

physics.optics2023★ 2 cited

On-chip arrayed waveguide grating fabricated on thin film lithium niobate

Zhe Wang, Zhiwei Fang, Zhaoxiang Liu +8

We design an on-chip 8-channel TFLN AWG and fabricate the device using photolithography assisted chemo-mechanical etching (PLACE) technique. We experimentally measure the transmiss…

physics.optics2023

Multi-mode Perturbation Modelling for Cavity Polygon and Star Modes

Saeed Farajollahi, Zhiwei Fang, Jintian Lin +3

Polygon and star modes enable unidirectional emission and single-frequency lasing in whispering gallery microcavities. To understand their properties and facilitate design, we have…

physics.optics2023

Electro-optically programmable photonic circuits enabled by wafer-scale integration on thin-film lithium niobate

Yong Zheng, Haozong Zhong, Haisu Zhang +10

Programmable photonic circuits performing universal linear-optical transformations underpin vital functions in photonic quantum information processing, quantum-enhanced sensor netw…

physics.optics2023★ 3 cited

Ultra-high-speed high-resolution laser lithography for lithium niobate integrated photonics

Jinming Chen, Zhaoxiang Liu, Lvbin Song +3

Photolithography assisted chemo-mechanical etching (PLACE), a technique specifically developed for fabricating highquality large-scale photonic integrated circuits (PICs) on thin-f…

physics.optics2022★ 47 cited

On-chip single-mode thin film lithium niobate laser based on Sagnac loop reflectors

Shupeng Yu, Zhiwei Fang, Zhe Wang +7

We demonstrate an on-chip single-mode Er3+-doped thin film lithium niobate (Er: TFLN) laser which consists of a Fabry-Pérot (FP) resonator based on Sagnac loop reflectors (SLRs). T…

physics.optics2022★ 7 cited

Monolithically integrated high-power narrow-bandwidth microdisk laser

Jianglin Guan, Chuntao Li, Renhong Gao +7

Integrated on-chip microdisk lasers have attracted great attention as a light source of compact size, low lasing threshold and narrow bandwidth. However, challenges remain unresolv…

physics.optics2022★ 1 cited

Modes trimming and clustering in a weakly perturbed high-Q whispering gallery microresonator

Botao Fu, Renhong Gao, Jintian Lin +6

In general, a high-Q microresonator can accommodate abundant whispering gallery modes (WGMs) with the mode number increasing with the dimensional sizes of the microresonator. Remov…

physics.optics2022★ 1 cited

Electro-optically tunable low phase-noise microwave synthesizer in an active lithium niobate microdisk

Renhong Gao, Botao Fu, Ni Yao +7

Photonic-based low-phase-noise microwave generation with real-time frequency tuning is crucial for a broad spectrum of subjects, including next-generation wireless communications,…

physics.optics2022

Monolithically integrated active passive waveguide array fabricated on thin film lithium niobate using a single continuous photolithography process

Yuan Zhou, Yiran Zhu, Zhiwei Fang +13

We demonstrate a robust low-loss optical interface by tiling passive (i.e., without doping of active ions) thin film lithium niobate (TFLN) and active (i.e., doped with rare earth…