Ion-sliced lithium niobate thin films for active photonic devices

Poberaj, G.; Koechlin, Manuel; Sulser, Frederik; Guarino, Andrea; Hajfler, Jaroslav; Günter, Peter

doi:10.1016/j.optmat.2007.12.019

Cited by 96 publications

(43 citation statements)

References 21 publications

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“…In a usual situation, the χ (2) coefficient in a single LiNbO 3 slice is z-independent. However, there is still an available way to realizing z-directional modulation of χ (2) through stacking the slices together [32] (High quality LiNbO 3 thin films with a thickness of several hundred nanometers are experimentally achievable through the ion slicing technique [33]). Without loss of generality, we consider a 3-D system, in which the χ (2) coefficient is x,y,z-dependent.…”

Section: Transverse Properties Of Spdc In Domain-engineered Lithimentioning

confidence: 99%

Generation of N00N State With Orbital Angular Momentum in a Twisted Nonlinear Photonic Crystal

Ming

Tang

Chen

et al. 2015

IEEE J. Select. Topics Quantum Electron.

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We investigate wavefront engineering of photon pairs generated through spontaneous parametric down conversion in lithium niobate-based nonlinear photonic crystals (NPCs). Due to the complexity of domain structures, it is more convenient to describe photon interaction based on the nonlinear Huygens-Fresnel principle than conventional quasiphase matching regime. Analytical expressions are obtained to describe the transverse properties of down-converted photon states. The convenience of domain engineering in LiNbO 3 crystals provides a potential platform for flexible wavefront manipulation of multiphoton states. The generation of N00N state with orbital angular momentum in a twisted NPC is studied utilizing this method. The obtained state is of great value in quantum cryptography, metrology, and lithography applications.Index Terms-N00N state, wavefront engineering, nonlinear photonic crystal, spontaneous parametric down-conversion.

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Section: Transverse Properties Of Spdc In Domain-engineered Lithimentioning

confidence: 99%

Generation of N00N State With Orbital Angular Momentum in a Twisted Nonlinear Photonic Crystal

Ming

Tang

Chen

et al. 2015

IEEE J. Select. Topics Quantum Electron.

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Section: Introductionmentioning

confidence: 99%

“…Crystal ion slicing has been used to obtain LN crystalline thin films by peeling them from the substrates [4]. Fabrication of LN thin film waveguides by bonding an ion-implanted crystal to another substrate and ion slicing has been demonstrated [5][6][7].In this paper, we demonstrate fabrication of domain inverted (DI) structures by voltage application method and ridge waveguides by proton-exchange (PE) accelerated etching [8,9] in bonded ion-sliced LN, for implementation of highly efficient QPM wavelength conversion devices. …”

mentioning

confidence: 99%

Fabrication of domain inverted ridge waveguide in ion-sliced LiNbO3 for wavelength conversion devices

Tanaka

Suhara

2015

2015 20th Microoptics Conference (MOC)

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High-refractive-index-contrast thin film ridge waveguides can confine light more strongly than conventional Ti-indiffused and annealed/proton-exchanged waveguides. We fabricated domain inverted structures by voltage application method and ridge waveguides by proton-exchange accelerated etching in bonded ion-sliced thin film LiNbO 3 crystals for implementation of highly efficient wavelength conversion devices. IntroductionNonlinear-optic (NLO) wavelength conversion devices using LiNbO 3 (LN) waveguides with quasi-phasematching (QPM) structures have been studied for applications to laser displays, wavelength division multiplexed networks and quantum information technologies [1]. High-refractive-index-contrast thin film ridge waveguides can confine light more strongly than conventional Ti-indiffused and annealed/protonexchanged (APE) waveguides [2,3]. Crystal ion slicing has been used to obtain LN crystalline thin films by peeling them from the substrates [4]. Fabrication of LN thin film waveguides by bonding an ion-implanted crystal to another substrate and ion slicing has been demonstrated [5][6][7].In this paper, we demonstrate fabrication of domain inverted (DI) structures by voltage application method and ridge waveguides by proton-exchange (PE) accelerated etching [8,9] in bonded ion-sliced LN, for implementation of highly efficient QPM wavelength conversion devices.

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“…Optical microring resonators and photonic bandgap structures have been proposed for these applications. Lithium niobate offers excellent electro-optical and nonlinear optical properties, but its use for the realization of high-density integrated optics devices has become feasible only recently with the development of strongly guiding LiNbO 3 waveguides of high index contrast [1][2][3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

“…In one of our approaches at the Nonlinear Optics Laboratory of ETH Zurich we have developed a method for reproducible fabrication of sub-micrometer thick LiNbO 3 films with an area of > 1 cm 2 (Refs [3][4] ). This method exploits the controlled exfoliation of He + implanted thin layers from a bulk LiNbO 3 crystal (crystal ion slicing) supported by wafer bonding using an adhesive polymer benzocyclobutene (BCB).…”

Section: Introductionmentioning

confidence: 99%

High-density integrated optics in ion-sliced lithium niobate thin films

et al. 2010

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We report on the fabrication of ion-sliced single-crystalline lithium niobate thin films and realization of electro-optically tunable microring resonators and photonic bandgap structures for high-density integrated optics devices. Using a homebuilt high-resolution laser lithography system we structured microring resonators with a free spectral range of > 7 nm, a quality factor of up to 10'000, and a tunability of 1 pm/V at wavelengths around 1.55 m. Moreover, we show that the fabricated microrings can be detached from the original substrate and transferred onto any host substrate. This opens new possibilities for building hybrid integrated optics devices based on lithium niobate microrings and laterally or vertically coupled waveguides of different materials. Combining the laser lithography patterning and focused ion beam milling we have also fabricated planar photonic crystals structures. Triangular lattices of holes with a diameter of 240 nm and a separation of 500 nm exhibit a photonic bandgap in the wavelength range from 1390 and 1500 nm with an extinction ratio of up to 15 dB.

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Ion-sliced lithium niobate thin films for active photonic devices

Cited by 96 publications

References 21 publications

Generation of N00N State With Orbital Angular Momentum in a Twisted Nonlinear Photonic Crystal

Generation of N00N State With Orbital Angular Momentum in a Twisted Nonlinear Photonic Crystal

Fabrication of domain inverted ridge waveguide in ion-sliced LiNbO3 for wavelength conversion devices

High-density integrated optics in ion-sliced lithium niobate thin films

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