Microcomb technology: from principles to applications DOI Creative Commons
Haowen Shu, Bitao Shen,

Huajin Chang

et al.

Photonics Insights, Journal Year: 2024, Volume and Issue: 3(4), P. R09 - R09

Published: Jan. 1, 2024

Language: Английский

Octave-spanning Kerr soliton frequency combs in dispersion- and dissipation-engineered lithium niobate microresonators DOI Creative Commons
Yunxiang Song, Yaowen Hu,

Xinrui Zhu

et al.

Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)

Published: Sept. 2, 2024

Abstract Dissipative Kerr solitons from optical microresonators, commonly referred to as soliton microcombs, have been developed for a broad range of applications, including precision measurement, frequency synthesis, and ultra-stable microwave millimeter wave generation, all on chip. An important goal microcombs is self-referencing, which requires octave-spanning bandwidths detect stabilize the comb carrier envelope offset frequency. Further, detection locking spacings are often achieved using division by electro-optic modulation. The thin-film lithium niobate photonic platform, with its low loss, strong second- third-order nonlinearities, well large Pockels effect, ideally suited these tasks. However, challenging demonstrate this largely complicated Raman effects hindering reliable fabrication devices. Here, we entirely connected niobate. With appropriate control over microresonator free spectral dissipation spectrum, show that soliton-inhibiting suppressed, devices fabricated near-unity yield. Our work offers an unambiguous method generation strongly Raman-active materials. it anticipates monolithically integrated, self-referenced standards in conjunction established technologies, such periodically poled waveguides modulators,

Language: Английский

Citations

9

Dispersion engineering for broadband visible microcombs via mode hybridization and inverse design DOI
Z. W. Zhao,

Ruiji Dong,

Ya Hu

et al.

Optics Letters, Journal Year: 2025, Volume and Issue: 50(5), P. 1751 - 1751

Published: Feb. 7, 2025

We propose a reliable and simple approach for dispersion engineering in lithium niobate microring resonators (MRRs). With strong coupling-induced mode hybridization inverse design method, we overcome the large normal achieve broadband frequency comb coverage near 525 nm. adopt neural network method design, which outperforms traditional forward based on manual trial-and-error intuitive judgment. Our numerical results demonstrate possibility of generating visible Kerr soliton microcomb with bandwidth 214.4 nm single MRR, holds significant potential applications bioimaging on-chip atomic clocks.

Language: Английский

Citations

1

Integrated high-Q cascaded Fabry-Perot resonators based on lithium niobate Sagnac loop reflectors DOI
Qian Qiao, Jintian Lin, Renhong Gao

et al.

Optics Letters, Journal Year: 2025, Volume and Issue: 50(7), P. 2370 - 2370

Published: Feb. 24, 2025

We demonstrated an integrated high-Q cascaded Fabry-Perot (FP) resonator on lithium niobate insulator (LNOI) implemented by multi-Sagnac loop reflectors, which was fabricated femtosecond laser photolithography-assisted chemo-mechanical polishing (CMP). Compared with the that comprised only two Sagnac reflectors (SLRs), there is a significant Q factor enhancement in formed multi-SLRs. The loaded of measured to be 1.16 × 106, five-fold improvement compared state art same material platform.

Language: Английский

Citations

0

Thermally controlled dual-mode Si3N4 microresonators for generation of octave-spanning Kerr solitons DOI Creative Commons
Hai‐Zhong Weng,

Huilan Tu,

Vikash Kumar

et al.

Physical Review Applied, Journal Year: 2025, Volume and Issue: 23(3)

Published: March 13, 2025

Octave-spanning soliton frequency combs generated by microresonators present a compact and low-noise tool for high-resolution time distance measurements through self-referencing. While these have been observed on various photonic platforms, their practical deployment is often hindered complex control mechanisms, resulting in low yield of useful devices. To address challenges, we optimized dual-mode scheme incorporating heaters directly onto Si3N4 microresonators. The thermal control, achieved adjusting the electrical power supplied to heaters, effectively tunes mode separation favorable level (∼100 pm 1 THz resonator), facilitating efficient compensation improving functional resonators. Kerr solitons can be deterministically simply reducing heater voltage via either slow sweeping or fast pulse tuning with pump wavelength fixed. Additionally, bidirectional scanning enables smooth transition from multisoliton single-soliton states, optimizing both bandwidth comb power. integrated allows fine-tuning repetition rate carrier-envelope offset slopes −21.18 MHz/mW +0.35 GHz/mW, respectively. We successfully octave-spanning across multiple resonators different rates (∼1 ∼390 GHz). systematic design strategy explored future optimization. These improvements mark significant advancement toward cost-effective applications such as optical clocks synthesizers. Published American Physical Society 2025

Language: Английский

Citations

0

High-Q Integrated Lithium Tantalate Microring Resonator for On-Chip Comb Generation DOI

Jiachen Cai,

Pi‐Yu Wang,

Jin Li

et al.

Optics Letters, Journal Year: 2024, Volume and Issue: 49(20), P. 5921 - 5921

Published: Sept. 24, 2024

Lithium tantalate on insulator (LTOI), taking advantage of high cost-effectiveness, ultra-low optical loss, and prominent electro-optic (EO) coefficient, shows great potential as an integrated waveguide-based platform for commercialization. Further research monolithic nonlinear source generators with tunable features is crucial in its early stages. Here, we fabricate low-loss microring resonators (intrinsic Q value above 4 × 10 6 ) via universal subtractive manufacturing. Both Kerr EO combs are realized based X-cut LTOI high-Q resonators. Specifically, elucidate the complicated synergy caused by a photorefractive (PR) effect thermo-optic modulation, observing soliton step using facile laser scanning technique. Furthermore, preliminary experimental result static comb also exploited 20 GHz free spectral range (FSR) resonator, verifying versatility this unique photonic on-chip microcomb generation.

Language: Английский

Citations

2

Hermite–Gaussian solitons in 1+2 dimensional nonlocal nonlinear systems with Y0-oscillatory response DOI Creative Commons
Jing Wang, Xiyue Li, Peishan Zhang

et al.

AIP Advances, Journal Year: 2024, Volume and Issue: 14(12)

Published: Dec. 1, 2024

We investigate the Hermite–Gaussian solitons in 1+2 dimensional nonlocal nonlinear systems with Y0-oscillatory response. The iterative solution of is numerically found using accelerated imaginary-time evolution method amplitude normalization. existence interval determined based on boundary conditions, degree nonlocality, and normalized amplitude. stability demonstrated through a series numerical simulations. soliton exhibits breathing behavior during propagation when incident intensity increased. characteristics higher order are also investigated.

Language: Английский

Citations

0

Microcomb technology: from principles to applications DOI Creative Commons
Haowen Shu, Bitao Shen,

Huajin Chang

et al.

Photonics Insights, Journal Year: 2024, Volume and Issue: 3(4), P. R09 - R09

Published: Jan. 1, 2024

Language: Английский

Citations

0