Patent
Optical waveguide and optical waveguide device
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TLDR
In this paper, an optical waveguide composed of a LiTaO3 monocrystalline substrate and a LiNbO3 thin film waveguide formed on the surface of the substrate is presented.Abstract:
Optical device including an optical waveguide composed of a LiTaO3 monocrystalline substrate and a LiNbO3 monocrystalline thin film waveguide formed on the surface of the substrate, with the lattice length of the LiNbO3 monocrystalline thin film waveguide and the LiTaO3 monocrystalline substrate being matched with each other, and an electrode provided on at least one of the branched sections of the waveguide extending along the optical axis thereof for changing a refractive index of the waveguide. The optical device having the optical waveguide has excellent electro-optic effects and a resistance to optical damage as well as an advanced modulation efficiency and a stable amplitude modulation.read more
Citations
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References
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Journal ArticleDOI
Ti-diffused LiNbO 3 branched-waveguide modulators: Performance and design
T. Ranganath,Shyh Wang +1 more
TL;DR: In this paper, experimental studies of an amplitude modulator using Ti-diffused LiNbO 3 branched waveguides have been conducted and the authors present experimental evidence in support of three problem areas connected with the improvement of performance of the device.
Patent
Second harmonic wave generating device
TL;DR: In this article, a second harmonic wave generating device consisting of a LiTa0 3 thin film formed on a LiNbO 3 substrate and an ordinary refractive index (n OF1 ) of said LiTaO3 thin film waveguide layer at the fundamental wavelength was presented.
Journal ArticleDOI
Electrooptic behaviour of proton exchanged LiNbO3 optical waveguides
TL;DR: In this article, le coefficient electrooptique d'un guide d'onde en metaniobate de lithium a partir de la deflexion de un faisceau gaussien lateral and de la mesure du decalage de phase, cause par l'application of un champ electrique externe sur la structure.
Journal ArticleDOI
Epitaxial growth of ferroelectric films for optoelectronic (SAW) applications
TL;DR: In this paper, it was shown that it is possible to reduce the temperature coefficient of SAW velocity for crystallized Li 0.99 Na 0.01 NbO 3 and Li 0.99 Na0.01 TaO 3 thin films grown by the LPE technique.
Journal ArticleDOI
Direct measurement of temperature dependence of lattice mismatches between LPE-grown Li(Nb,Ta)O3 film and LiTaO3 substrate
Kiyomasa Sugii,Susumu Kondo +1 more
TL;DR: In this paper, the lattice mismatch between several compositions of the liquid phase epitaxial (LPE) grown Li(Nb,Ta)O3 films and a LiTaO3 substrate was directly measured between 1000 and 20°C, using a high-temperature X-ray triple- crystal spectrometer.