Active guided-wave optical devices in lithium niobate and lithium tantalate

1993 ◽  
Author(s):  
Richard M. De La Rue ◽  
F. Zhou ◽  
Pisu Jiang ◽  
Charles N. Ironside ◽  
T. P. Han ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Lithium Tantalate ◽  
Optical Devices ◽  
Guided Wave

scholarly journals Parametric Conversion in Micrometer and Submicrometer Structured Ferroelectric Crystals by Surface Poling

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Alessandro C. Busacca ◽  
Salvatore Stivala ◽  
Luciano Curcio ◽  
Gaetano Assanto
Keyword(s):  
Lithium Niobate ◽  
Wavelength Conversion ◽  
Frequency Doubling ◽  
Lithium Tantalate ◽  
Ferroelectric Domain ◽  
Guided Wave ◽  
Parametric Conversion ◽  
Short Period ◽  
Technological Improvements ◽  
Domain Inversion

We report on recent technological improvements concerning nonlinear patterning of lithium niobate and lithium tantalate in the micrometer and submicrometer scales using surface periodic poling for ferroelectric domain inversion. The fabricated samples were employed for frequency doubling via quasiphase-matching both in bulk and guided wave geometries, including forward and backward configurations and wavelength conversion in bands C and L. We also investigated short-period quasiperiodic samples with randomly distributed mark-to-space ratios.

Investigation of acoustic waves in thin plates of lithium niobate and lithium tantalate

2001 ◽  
Vol 48 (1) ◽  
pp. 322-328 ◽  
Author(s):  
I.E. Kuznetsova ◽  
B.D. Zaitsev ◽  
S.G. Joshi ◽  
I.A. Borodina
Keyword(s):  
Lithium Niobate ◽  
Acoustic Waves ◽  
Lithium Tantalate ◽  
Thin Plates

scholarly journals Crystallographic and optical study of LiNb1 − xTaxO3

2017 ◽  
Vol 73 (3) ◽  
pp. 498-506 ◽  
Author(s):  
S. Huband ◽  
D. S. Keeble ◽  
N. Zhang ◽  
A. M. Glazer ◽  
A. Bartasyte ◽  
...  
Keyword(s):  
Phase Transition ◽  
Lithium Niobate ◽  
Lithium Tantalate ◽  
Flux Growth ◽  
Structural Studies ◽  
Optical Study ◽  
X Ray Diffraction ◽  
Growth Technique ◽  
X Ray ◽  
Li Content

Powders of lithium niobate-tantalate across the full compositional range have been made and crystals grown using a lithium vanadate flux growth technique. The Li-content of a lithium tantalate crystal has been determined using the zero-birefringence temperature and Curie measurements, confirming the Li content is between that of congruent and stoichiometric crystals. X-ray diffraction measurements show the Nb/Ta displacement and octahedral tilt both decrease as the Ta content is increased. This also results in a decrease in the lattice parameters from lithium niobate to lithium tantalate. Birefringence measurements on the crystals as a function of temperature have been used to determine the point that the crystals become zero-birefringent, and by comparison with the structural studies have confirmed that it is not related to a phase transition and the structures remain polar through the zero-birefringence points.

A comparative study on the domain switching characteristics of near stoichiometric lithium niobate and lithium tantalate single crystals

2005 ◽  
Vol 120 (1-3) ◽  
pp. 125-129 ◽  
Author(s):  
S. Ganesamoorthy ◽  
M. Nakamura ◽  
S. Takekawa ◽  
S. Kumaragurubaran ◽  
K. Terabe ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Comparative Study ◽  
Single Crystals ◽  
Domain Switching ◽  
Lithium Tantalate ◽  
Switching Characteristics

Lithium niobate guided-wave beam former for steering phased-array antennas

1994 ◽  
Vol 33 (26) ◽  
pp. 6194 ◽  
Author(s):  
Mario N. Armenise ◽  
Vittorio M. N. Passaro ◽  
Giuseppe Noviello
Keyword(s):  
Lithium Niobate ◽  
Phased Array ◽  
Wave Beam ◽  
Guided Wave ◽  
Phased Array Antennas ◽  
Array Antennas
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