Integrated lithium niobate photonics

Lithium niobate (LiNbO ) on insulator (LNOI) is a promising material platform for integrated photonics due to single crystal LiNbO film’s wide transparent window, high refractive index, and high second-order nonlinearity. Based on LNOI, the fast-developing ridge-waveguide fabrication techniques enab...

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Vydáno v:Nanophotonics (Berlin, Germany) Ročník 9; číslo 6; s. 1287 - 1320
Hlavní autoři: Qi, Yifan, Li, Yang
Médium: Journal Article
Jazyk:angličtina
Vydáno: Berlin De Gruyter 01.06.2020
Walter de Gruyter GmbH
Témata:
Data centers
Devices
electro-optic
integrated photonics
lithium niobate
Lithium niobates
Microwave photonics
Modulators
nonlinear optics
Nonlinearity
Optical communication
Optical frequency
Optical properties
Optics
Performance measurement
Photonics
Quantum optics
Refractivity
resonator
Signal processing
Single crystals
waveguide
Waveguides
ISSN:2192-8606, 2192-8614
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Shrnutí:Lithium niobate (LiNbO ) on insulator (LNOI) is a promising material platform for integrated photonics due to single crystal LiNbO film’s wide transparent window, high refractive index, and high second-order nonlinearity. Based on LNOI, the fast-developing ridge-waveguide fabrication techniques enabled various structures, devices, systems, and applications. We review the basic structures including waveguides, cavities, periodically poled LiNbO , and couplers, along with their fabrication methods and optical properties. Treating those basic structures as building blocks, we review several integrated devices including electro-optic modulators, nonlinear optical devices, and optical frequency combs with each device’s operating mechanism, design principle and methodology, and performance metrics. Starting from these integrated devices, we review how integrated LNOI devices boost the performance of LiNbO ’s traditional applications in optical communications and data center, integrated microwave photonics, and quantum optics. Beyond those traditional applications, we also review integrated LNOI devices’ novel applications in metrology including ranging system and frequency comb spectroscopy. Finally, we envision integrated LNOI photonics’ potential in revolutionizing nonlinear and quantum optics, optical computing and signal processing, and devices in ultraviolet, visible, and mid-infrared regimes. Beyond this outlook, we discuss the challenges in integrated LNOI photonics and the potential solutions.
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ISSN:2192-8606
2192-8614
DOI:10.1515/nanoph-2020-0013