Microdisk lasers on an erbium-doped lithium-niobite chip

Luo, Qiang; Hao, Zhineng; Chen, Yang; Zhang, Ru; Zheng, Dahuai; Liu, ShiGuo; Liu, Hongde; Fang, Bo; Kong, Yong; Zhang, Guoquan; Xu, Jingjun

doi:10.1007/s11433-020-1637-8

Cited by 82 publications

(57 citation statements)

References 30 publications

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“…On the classical end, very recently, on-chip waveguide amplifiers [443,444] and microdisk lasers [445][446][447] were demonstrated using Er 3+ -doped thin-film LN. In these works, Er 3+ -doped LN thin films were ion-sliced from uniformly doped bulk crystals.…”

Section: B)mentioning

confidence: 99%

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Integrated photonics on thin-film lithium niobate

et al. 2021

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Lithium niobate (LN), an outstanding and versatile material, has influenced our daily life for decades: from enabling high-speed optical communications that form the backbone of the Internet to realizing radio-frequency filtering used in our cell phones. This half-century-old material is currently embracing a revolution in thin-film LN integrated photonics. The success of manufacturing wafer-scale, high-quality, thin films of LN on insulator (LNOI), accompanied with breakthroughs in nanofabrication techniques, have made high-performance integrated nanophotonic components possible. With rapid development in the past few years, some of these thin-film LN devices, such as optical modulators and nonlinear wavelength converters, have already outperformed their legacy counterparts realized in bulk LN crystals. Furthermore, the nanophotonic integration enabled ultra-low-loss resonators in LN, which unlocked many novel applications such as optical frequency combs and quantum transducers. In this Review, we cover-from basic principles to the state of the art-the diverse aspects of integrated thinfilm LN photonics, including the materials, basic passive components, and various active devices based on electro-optics, all-optical nonlinearities, and acousto-optics. We also identify challenges that this platform is currently facing and point out future opportunities. The field of integrated LNOI photonics is advancing rapidly and poised to make critical impacts on a broad range of applications in communication, signal processing, and quantum information.

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Section: B)mentioning

confidence: 99%

“…In Refs. [445][446][447], high-Q microdisks were used as cavities and lasing at telecom wavelengths was observed. Strong photorefractive effect was observed in these microdisk lasers, especially in the presence of a short-wavelength pump.…”

Section: B)mentioning

confidence: 99%

Integrated photonics on thin-film lithium niobate

et al. 2021

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“…Thus LN enables optical modulators with much higher switching rates [25]. Recently, the thin-film LN on insulator (LNOI) [26,27] has emerged as a promising platform for ultracompact photonic devices [28][29][30][31][32][33][34][35][36][37]. Thanks to the large refractive index contrast between the LN film and substrate (such as silica), optical modes can be tightly confined within the nanometers-thin LN layer, leading to an improved EO modulation efficiency.…”

Section: Introductionmentioning

confidence: 99%

Electro-optic lithium niobate metasurfaces

Gao

Ren

et al. 2021

Sci. China Phys. Mech. Astron.

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Many applications of metasurfaces require an ability to dynamically change their properties in the time domain. Electrical tuning techniques are of particular interest, since they pave a way to on-chip integration of metasurfaces with optoelectronic devices. In this work, we propose and experimentally demonstrate an electro-optic lithium niobate (EO-LN) metasurface that shows dynamic modulations to phase retardation of transmitted light. Quasi-bound states in the continuum (QBIC) are observed from this metasurface. By applying external electric voltages, the refractive index of lithium niobate (LN) is changed by Pockels EO nonlinearity, leading to efficient phase modulations to the transmitted light around the QBIC wavelength. The EO-LN metasurface developed in this study opens up new routes for potential applications in the field of displaying, pulse shaping, and spatial light modulating.lithium niobate metasurfaces, electro-optic modulation, bound states in the continuum, resonance

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“…[ 44 ] High‐ Q lasing modes were realized which hold great potential in future low‐loss large‐scale photonic integration for optical communications and information processing. [ 45,46 ] Furthermore, different boundary shapes of a microdisk were investigated to enhance the mode confinement in the cavity. It has been demonstrated that a wedged‐shaped edge with isolated modes from the disk perimeter could largely reduce the scattering loss.…”

Section: Configurations and Fabricationsmentioning

confidence: 99%

Recent Progress on Optoplasmonic Whispering‐Gallery‐Mode Microcavities

Chen

Yin

et al. 2021

Advanced Optical Materials

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Optoplasmonic whispering‐gallery‐mode (WGM) microcavities, consisting of plasmonic nanostructures and optical microcavities, provide excellent platforms for exploring fundamental mechanisms as well as facilitating novel optoplasmonic applications. These integrated systems support hybrid modes with both subwavelength mode confinement and high‐quality factor which do not exist in either pure optical WGM microcavities or plasmonic resonators. In this progress report, geometric designs and fabrication strategies of optoplasmonic microcavities, which efficiently bridge the interaction between resonant light and plasmonic resonances, are reviewed in detail. Three types of hybrid modes in the optoplasmonic microcavities, that is, surface‐plasmon‐polariton whispering‐gallery modes, hybrid photon–plasmon whispering‐gallery modes, and heterostructured metal–dielectric whispering‐gallery modes, are considered. These modes are characterized by a largely enhanced evanescent field that is referred to as a plasmon‐type field in hybrid whispering‐gallery modes. Moreover, the coupling effect between localized surface plasmon resonances and whispering‐gallery modes is summarized. The underlying coupling mechanisms and their influence on mode shifts, Q factor, mode splitting, and line shapes of the whispering‐gallery modes are discussed. Applications based on optoplasmonic WGM microcavities including enhanced sensing, nanolasing, and free‐space coupling are highlighted, followed by an outlook of the opportunities and challenges in developing large‐scale on‐chip integrated optoplasmonic systems.

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Microdisk lasers on an erbium-doped lithium-niobite chip

Cited by 82 publications

References 30 publications

Integrated photonics on thin-film lithium niobate

Integrated photonics on thin-film lithium niobate

Electro-optic lithium niobate metasurfaces

Recent Progress on Optoplasmonic Whispering‐Gallery‐Mode Microcavities

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