Waveguide lasers and nonlinear frequency converters in lithium niobate

1999 ◽  
Author(s):  
Wolfgang Sohler
Keyword(s):  
Lithium Niobate ◽  
Nonlinear Frequency ◽  
Frequency Converters ◽  
Waveguide Lasers

scholarly journals Channel Waveguides in Lithium Niobate and Lithium Tantalate

2020 ◽  
Author(s):  
Yi Lu ◽  
Benjamin Johnston ◽  
Peter Dekker ◽  
Michael Withford ◽  
Judith M. Dawes
Keyword(s):  
Liquid Phase ◽  
Lithium Niobate ◽  
Liquid Phase Epitaxy ◽  
Second Harmonic ◽  
Lithium Tantalate ◽  
Nonlinear Frequency ◽  
Low Loss ◽  
Frequency Converters ◽  
Channel Waveguides ◽  
Photonic Waveguides

Low-loss photonic waveguides in lithium niobate offer versatile functionality as nonlinear frequency converters, switches, and modulators for integrated optics. Combining the flexibility of laser processing with liquid phase epitaxy we have fabricated and characterized lithium niobate channel waveguides on lithium niobate and lithium tantalate. We used liquid phase epitaxy with K2O flux on laser-machined lithium niobate and lithium tantalate substrates. The laser-driven rapid-prototyping technique can be programmed to give machined features of various sizes, and liquid phase epitaxy produces high quality single-crystal, lithium niobate channels. The surface roughness of the lithium niobate channels on a lithium tantalate substrate was measured to be 90 nm. The lithium niobate channel waveguides exhibit propagation losses of 0.26 ± 0.04 dB/mm at a wavelength of 633 nm. Second harmonic generation at 980 nm was demonstrated using the channel waveguides, indicating that these waveguides retain their nonlinear optical properties.

scholarly journals Channel Waveguides in Lithium Niobate and Lithium Tantalate

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3925
Author(s):  
Yi Lu ◽  
Benjamin Johnston ◽  
Peter Dekker ◽  
Michael J. Withford ◽  
Judith M. Dawes
Keyword(s):  
Liquid Phase ◽  
Lithium Niobate ◽  
Liquid Phase Epitaxy ◽  
Second Harmonic ◽  
Lithium Tantalate ◽  
Nonlinear Frequency ◽  
Low Loss ◽  
Frequency Converters ◽  
Channel Waveguides ◽  
Photonic Waveguides

Low-loss photonic waveguides in lithium niobate offer versatile functionality as nonlinear frequency converters, switches, and modulators for integrated optics. Combining the flexibility of laser processing with liquid phase epitaxy we have fabricated and characterized lithium niobate channel waveguides on lithium niobate and lithium tantalate. We used liquid phase epitaxy with K2O flux on laser-machined lithium niobate and lithium tantalate substrates. The laser-driven rapid-prototyping technique can be programmed to give machined features of various sizes, and liquid phase epitaxy produces high quality single-crystal, lithium niobate channels. The surface roughness of the lithium niobate channels on a lithium tantalate substrate was measured to be 90 nm. The lithium niobate channel waveguides exhibit propagation losses of 0.26 ± 0.04 dB/mm at a wavelength of 633 nm. Second harmonic generation at 980 nm was demonstrated using the channel waveguides, indicating that these waveguides retain their nonlinear optical properties.

Grating reflectors for erbium-doped lithium niobate waveguide lasers

1994 ◽  
Author(s):  
Juergen Soechtig ◽  
Helmut Schuetz ◽  
Richard Widmer ◽  
Hans W. Lehmann ◽  
Robert Gross
Keyword(s):  
Lithium Niobate ◽  
Waveguide Lasers ◽  
Erbium Doped

Time-dependent modeling of erbium-doped waveguide lasers in lithium niobate pumped at 980 and 1480 nm

1997 ◽  
Vol 33 (10) ◽  
pp. 1647-1662 ◽  
Author(s):  
D.L. Veasey ◽  
J.M. Gary ◽  
J. Amin ◽  
J.A. Aust
Keyword(s):  
Lithium Niobate ◽  
Time Dependent ◽  
Waveguide Lasers ◽  
Erbium Doped

Nonlinear frequency conversion in one dimensional lithium niobate photonic crystal nanocavities

2018 ◽  
Vol 113 (2) ◽  
pp. 021104 ◽  
Author(s):  
Haowei Jiang ◽  
Hanxiao Liang ◽  
Rui Luo ◽  
Xianfeng Chen ◽  
Yuping Chen ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Lithium Niobate ◽  
Frequency Conversion ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
One Dimensional

scholarly journals Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jiayi Wang ◽  
Zhuojun Liu ◽  
Jin Xiang ◽  
Bo Chen ◽  
Yuming Wei ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Nonlinear Material ◽  
Nonlinear Susceptibility ◽  
Light Sources ◽  
Frequency Converters ◽  
Nanophotonic Devices ◽  
Fs Laser

Abstract Lithium niobate (LN), as a nonlinear material with a large nonlinear susceptibility, has been widely employed in second harmonic generation (SHG) up to ultraviolet (UV) frequency range due to its broad low-absorption window. In nanophotonics, it is possible to harness the Mie resonances associated with the single dielectric particles to boost the nonlinear light–matter interactions. Here, we fabricate single Mie-resonant LN nanospheres on a SiO2 substrate via the femtosecond (fs) laser ablation technique. By exploiting the magnetic dipole (MD) Mie resonance, UV SHG from the LN nanosphere is significantly enhanced with a measured conversion efficiency of 4.45 × 10−8 under the excitation of an fs laser at 750 nm. The single LN nanospheres achieved in this work could serve as Mie resonators for building nonlinear nanophotonic devices such as frequency converters and quantum light sources, etc.

Linear & Nonlinear Frequency Converters

1987 ◽  
Author(s):  
L. Esterowitz ◽  
C. Marquardt ◽  
I. Schneider ◽  
R. Allen
Keyword(s):  
Nonlinear Frequency ◽  
Frequency Converters
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