Fabrication and characterization of titanium-indiffused proton-exchanged optical waveguides in Y-LiNbO_3

Dawar, A. L.; Al‐Shukri, S. M.; Rue, R.M. De La; Nutt, Alan C. G.; Stewart, George

doi:10.1364/ao.25.001495

Cited by 25 publications

(2 citation statements)

References 15 publications

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“…Titanium indiffused waveguides are fabricated at high temperatures (around 1000 °C) while proton exchange waveguides are fabricated at much lower temperatures of 350 °C-400 °C. Thus for the device, titanium indiffused waveguides of appropriate characteristics can be fabricated first followed by proton exchanged waveguides [22,23]. Since proton exchange takes place at much lower temperatures it does not affect the already fabricated titanium indiffused waveguides.…”

Section: Numerical Resultsmentioning

confidence: 99%

Polarization splitter based on a three waveguide directional coupler using quantum mechanical analogies

Aashna

Thyagarajan

2017

J. Opt.

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We propose a novel waveguide polarization splitter based on the optical analogue of two-photon Rabi oscillations and stimulated Raman adiabatic passage in a three waveguide directional coupler. Both these processes are borrowed from three level quantum mechanical atomic systems, in which an intermediate level is used to transfer the population from one state to another without any population occupation in the intermediate level. To show the practical feasibility of the device, simulations have been carried out on waveguides in lithium niobate and we show that two orthogonal polarizations can be separated at the output using the proposed three waveguide structures. We also show that the proposed structure is robust against changes in phase mismatch parameters, as well as wavelength of operation.

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Section: Numerical Resultsmentioning

confidence: 99%

Polarization splitter based on a three waveguide directional coupler using quantum mechanical analogies

Aashna

Thyagarajan

2017

J. Opt.

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“…While Ti in-diffusion causes a negative strain (Aa/a < 0), and then some form of compensation between the two opposing strains occurs, a lower H + content leads to a reduction of the exchange phenomenon, and lowering of induced strain. A systematic study of the fabrication and characterisation of planar TIPE waveguides in y-cut LiNbO 3 has been carried out by Da war et al [51]. In Reference [52], non linear effects in TIPE waveguides are discussed, together with the possibilities of using these waveguides in the design and fabrication of very interesting parametric devices.…”

Section: Proton Exchangementioning

confidence: 99%

Fabrication techniques of lithium niobate waveguides

Armenise

1988

IEE Proc. J Optoelectron. UK

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In the paper, the most commonly used fabrication techniques of optical waveguides in lithium niobate are reviewed. Diffusion processes such as out-diffusion of lithium oxide from the crystal surface, in-diffusion of metals, ion exchange and proton exchange, and ion implantation are analysed. The characteristics of LiNbO 3 optical waveguides prepared by the different technological procedures, are reported in relation with the fabrication conditions. High quality optical waveguides on lithium niobate can be produced by Ti in-diffusion in a dry O 2 atmosphere at temperatures above 1000°C for long diffusion times (>10h). However, despite the large amount of research done in this field, correlations between optical properties and structural characteristics have not yet been established.

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Overtone Spectroscopy of the OH and OD Stretch Modes in LiNbO₃

Förster

Kapphan

Wöhlecke

1987

Physica Status Solidi (b)

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absorption bands due to the fundamental and the overtone of OH and OD stretch modes are investigated in undoped, Mg-doped, and benzoic acid treated LiNbO,. The different bands are interpreted using an anharmonic oscillator model. Spectroscopic parameters determined from the isotope shift and the overtone frequencies are in good agreement. The anharmonicity found is comparable t o that of OH in other ABO, compounds and in alkali halides.Es werden die infraroten Absorptionsbanden der Grund-und Obertone der OH-und OD-Streckschwingungen in reinem, dotiertem (Magnesium) und mit Benzoesiure behandelten LiNbO, untersucht. Die verschiedenen Banden werden mittels eines anharmonischen Oszillatormodells interpretiert. Spektroskopische Parameter, die aus der Isotopieverschiebung und den Obertonfrequenzen abgeleitet werden, stimmen gut iiberein. Die gefundene Anharmonizitit ist mit der fur OH in anderen AB0,-Verbindungen und Alkalihalogeniden vergleichbar.

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Fabrication and characterization of titanium-indiffused proton-exchanged optical waveguides in Y-LiNbO_3

Cited by 25 publications

References 15 publications

Polarization splitter based on a three waveguide directional coupler using quantum mechanical analogies

Polarization splitter based on a three waveguide directional coupler using quantum mechanical analogies

Fabrication techniques of lithium niobate waveguides

Overtone Spectroscopy of the OH and OD Stretch Modes in LiNbO₃

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Fabrication and characterization of titanium-indiffused proton-exchanged optical waveguides in Y-LiNbO_3

Cited by 25 publications

References 15 publications

Polarization splitter based on a three waveguide directional coupler using quantum mechanical analogies

Polarization splitter based on a three waveguide directional coupler using quantum mechanical analogies

Fabrication techniques of lithium niobate waveguides

Overtone Spectroscopy of the OH and OD Stretch Modes in LiNbO3

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Overtone Spectroscopy of the OH and OD Stretch Modes in LiNbO₃