activity
20192023
most citedHertz-linewidth semiconductor lasers using CMOS-ready ultra-high- microresonators

583 citations · 1.4k across the 13 of their papers we have counts for

collaborators

13 papers

physics.optics2023

High-coherence parallelization in integrated photonics

Xuguang Zhang, Zixuan Zhou, Yijun Guo +19

Coherent optics has profoundly impacted diverse applications ranging from communications, LiDAR to quantum computations. However, building coherent systems in integrated photonics…

physics.optics2023★ 9 cited

Photonic chip-based low noise microwave oscillator

Igor Kudelin, William Groman, Qing-Xin Ji +26

Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has been made in the field of microwave ph…

physics.optics2023★ 5 cited

High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator

Bohan Li, Zhiquan Yuan, Warren Jin +7

By self-injection-locking a 1560 nm distributed feedback semiconductor laser to a high- silicon nitride resonator, a high-coherence 780 nm second harmonic signal is generated vi…

physics.optics2023★ 2 cited

Soliton pulse pairs at multiple colors in normal dispersion microresonators

Zhiquan Yuan, Maodong Gao, Yan Yu +7

Soliton microcombs are helping to advance the miniaturization of a range of comb systems. These combs mode lock through the formation of short temporal pulses in anomalous dispersi…

physics.optics2023

Engineered zero-dispersion microcombs using CMOS-ready photonics

Qing-Xin Ji, Warren Jin, Lue Wu +14

Normal group velocity dispersion (GVD) microcombs offer high comb line power and high pumping efficiency compared to bright pulse microcombs. The recent demonstration of normal GVD…

physics.app-ph2023★ 2 cited

Three-dimensional integration enables ultra-low-noise, isolator-free Si photonics

Chao Xiang, Warren Jin, Osama Terra +12

While photonic integrated circuits (PICs) are being widely used in applications such as telecommunications and datacenter interconnects, PICs capable of replacing bulk optics and f…

physics.optics2022

Chip-Based Laser with 1 Hertz Integrated Linewidth

Joel Guo, Charles A. McLemore, Chao Xiang +14

Lasers with hertz-level linewidths on timescales up to seconds are critical for precision metrology, timekeeping, and manipulation of quantum systems. Such frequency stability typi…

physics.optics2021★ 226 cited

High-performance lasers for fully integrated silicon nitride photonics

Chao Xiang, Joel Guo, Warren Jin +12

Silicon nitride (SiN) waveguides with ultra-low optical loss enable integrated photonic applications including low noise, narrow linewidth lasers, chip-scale nonlinear photonics, a…

physics.optics2021★ 22 cited

Self-regulating soliton domain walls in microresonators

Heming Wang, Boqiang Shen, Yan Yu +9

Dissipative soliton Kerr frequency combs in microresonators have recently been demonstrated with the self-injection locking process. They have the advantage of turnkey deterministi…

physics.optics2020

Correlated self-heterodyne method for ultra-low-noise laser linewidth measurements

Zhiquan Yuan, Heming Wang, Peng Liu +9

Narrow-linewidth lasers are important to many applications spanning precision metrology to sensing systems. Characterization of these lasers requires precise measurements of their…

physics.optics2020★ 583 cited

Hertz-linewidth semiconductor lasers using CMOS-ready ultra-high- microresonators

Warren Jin, Qi-Fan Yang, Lin Chang +8

Driven by narrow-linewidth bench-top lasers, coherent optical systems spanning optical communications, metrology and sensing provide unrivalled performance. To transfer these capab…

physics.app-ph2019★ 180 cited

A narrow-linewidth III-V/Si/Si3N4 laser using multilayer heterogeneous integration

Chao Xiang, Warren Jin, Joel Guo +5

Silicon nitride (Si3N4), as a complementary metal-oxide-semiconductor (CMOS) material, finds wide use in modern integrated circuit (IC) technology. The past decade has witnessed tr…

physics.optics2019★ 350 cited

Ultra-efficient frequency comb generation in AlGaAs-on-insulator microresonators

Lin Chang, Weiqiang Xie, Haowen Shu +13

Recent advances in nonlinear optics have revolutionized the area of integrated photonics, providing on-chip solutions to a wide range of new applications. Currently, the state of t…