Optical soliton generation in a photorefractive Fe-doped lithium niobate crystal by a pyroelectric effect

2021 ◽  
Author(s):  
Lusine M. Tsarukyan ◽  
Anahit Badalyan ◽  
Rafael Drampyan
Keyword(s):  
Lithium Niobate ◽  
Lithium Niobate Crystal ◽  
Optical Soliton ◽  
Pyroelectric Effect ◽  
Soliton Generation

scholarly journals Pyroelectric-controlled bending of a self-trapped optical beam in a photorefractive iron doped lithium niobate crystal

2021 ◽  
pp. 2150003
Author(s):  
Lusine Tsarukyan ◽  
Anahit Badalyan ◽  
Fabrice Devaux ◽  
Mathieu Chauvet ◽  
Rafael Drampyan
Keyword(s):  
Lithium Niobate ◽  
Laser Beam ◽  
Lithium Niobate Crystal ◽  
Optical Beam ◽  
The Self ◽  
Optical Information ◽  
Crystal Temperature ◽  
Experimental Demonstration ◽  
Pyroelectric Effect ◽  
Beam Bending

We present the experimental demonstration of a self-trapped optical beam bending in a photorefractive Fe-doped lithium niobate (LN:Fe) crystal controlled by the pyroelectric effect. Formation of self-trapped beams with typical [Formula: see text]50[Formula: see text][Formula: see text]m diameter and large bending of [Formula: see text]140[Formula: see text][Formula: see text]m are depicted in a 1[Formula: see text]cm length LN:Fe crystal for a laser beam at 632.8[Formula: see text]nm wavelength and 0.5[Formula: see text]mW power with a 30∘C crystal temperature change. The self-trapped beam bending is opposite to the crystal [Formula: see text]-axis. The underlying physics is elaborated and numerical simulations are performed. The long-living waveguiding channels with controlled curvilinear trajectories are promising for optical information routing.

scholarly journals Reflectometry Study of the Pyroelectric Effect on Proton-Exchange Channel Waveguides in Lithium Niobate

2021 ◽  
Vol 11 (21) ◽  
pp. 9853
Author(s):  
Roman Ponomarev ◽  
Yuri Konstantinov ◽  
Maxim Belokrylov ◽  
Ivan Lobach ◽  
Denis Shevtsov
Keyword(s):  
Lithium Niobate ◽  
Optical Waveguides ◽  
Lithium Niobate Crystal ◽  
Proton Exchange ◽  
Optical Losses ◽  
Pyroelectric Effect ◽  
Optical Frequency Domain Reflectometry ◽  
Exchange Channel ◽  
Frequency Domain Reflectometry ◽  
Channel Waveguides

This work is devoted to the study of the pyroelectric effect on the properties of optical waveguides formed in a lithium niobate crystal by proton exchange. In the present work, we studied the cessation effect of the radiation channeling during thermocycling of Y-splitters samples. We examined the spectral dependence of optical losses on the wavelength using an optical spectrum analyzer. The results demonstrate that in the range of 1530–1570 nm, all wavelengths are suppressed equally. The optical frequency domain reflectometry shows that the increase of optical losses is observed along the entire waveguide, but not only at the Y-splitting point, as supposed earlier.

scholarly journals Reflectometry Study of the Pyroelectric Effect on Proton-Exchange Channel Waveguides in Lithium Niobate

2021 ◽  
Author(s):  
Roman Ponomarev ◽  
Yuri Konstantinov ◽  
Ivan Lobach ◽  
Maxim Belokrylov ◽  
Denis Shevtsov
Keyword(s):  
Lithium Niobate ◽  
Optical Waveguides ◽  
Lithium Niobate Crystal ◽  
Proton Exchange ◽  
Optical Losses ◽  
Pyroelectric Effect ◽  
Exchange Channel ◽  
Distribution Point ◽  
Optical Reflectometry ◽  
Channel Waveguides

This work is devoted to the study of the pyroelectric effect on the qualities of optical waveguides formed in a lithium niobate crystal by proton exchange. In the present work, we investigated the cessation effect of the radiation channeling during thermocycling of Y-splitters samples. We examined the spectral dependence of optical losses on a wavelength using an optical spectrum analyzer. The results demonstrate that in the range of 1530–1570 nm, all wavelengths are suppressed equally. The optical reflectometry method in the frequency domain shows that the increase of optical losses is observed along the entire waveguide, but not only at the Y-distribution point, as supposed earlier.

Spectroscopic and photoluminescent studies of magnesium- and erbium-codoped lithium niobate crystal

2000 ◽  
Author(s):  
Hong X. Zhang ◽  
Chan Hin Kam ◽  
Yan Zhou ◽  
Qing Xiang ◽  
Kantisara Pita ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Lithium Niobate Crystal

Linear diffraction of light waves in periodically poled lithium niobate crystal

2017 ◽  
Vol 508 (1) ◽  
pp. 49-57 ◽  
Author(s):  
S. M. Shandarov ◽  
A. E. Mandel ◽  
A. V. Andrianova ◽  
G. I. Bolshanin ◽  
M. V. Borodin ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Lithium Niobate Crystal ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate ◽  
Light Waves ◽  
Diffraction Of Light

Radiation Exposure of a Lithium Niobate Crystal at High Temperatures

1970 ◽  
Vol 17 (6) ◽  
pp. 335-340 ◽  
Author(s):  
S. L. Halverson ◽  
T. T. Anderson ◽  
A. P. Gavin ◽  
T. Grate
Keyword(s):  
Lithium Niobate ◽  
Radiation Exposure ◽  
High Temperatures ◽  
Lithium Niobate Crystal

The Peculiarity of the A1-Type Polariton in Lithium Niobate Crystal

1981 ◽  
Vol 105 (2) ◽  
pp. K73-K75 ◽  
Author(s):  
V.S. GORELIK ◽  
B.S. UMAROV ◽  
L.G. REZNIK
Keyword(s):  
Lithium Niobate ◽  
Lithium Niobate Crystal
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