Wavelength conversion in periodically poled lithium niobate waveguides exploiting cascaded second order nonlinearity χ/sup (2)/:χ/sup (2)/

2002 ◽  
Author(s):  
M. Bozzetti ◽  
A. D'Orazio ◽  
D. De Sario ◽  
V. Petruzzelli ◽  
F. Prudenzano
Keyword(s):  
Lithium Niobate ◽  
Wavelength Conversion ◽  
Second Order ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate ◽  
Second Order Nonlinearity

WAVELENGTH CONVERSION OF AN INFRARED SIGNAL THROUGH CASCADED SECOND-ORDER NONLINEARITY IN A LITHIUM-NIOBATE CHANNEL WAVEGUIDE

2000 ◽  
Vol 09 (01) ◽  
pp. 11-20 ◽  
Author(s):  
I. CRISTIANI ◽  
M. RINI ◽  
A. RAMPULLA ◽  
G. P. BANFI ◽  
V. DEGIORGIO
Keyword(s):  
Lithium Niobate ◽  
Pulse Energy ◽  
Wavelength Conversion ◽  
Second Order ◽  
Channel Waveguide ◽  
Phase Matching ◽  
Order Process ◽  
Pump Pulse Energy ◽  
Second Order Nonlinearity ◽  
Second Order Process

We describe a wavelength conversion experiment (generation of a pulse at the wavelength λp - Δλ from a signal at λp+Δλ under the action of a pump at λp) performed through cascaded second-order process in a lithium niobate channel waveguide. With a 58-mm-long Ti diffused channel waveguide, λp=1.1 μ m (the wavelength of phase matching for the first step of sh generation), Δλ of several nanometers and 20 ps pulse duration, wavelength conversion with unit efficiency is obtained with a pump pulse energy of the order of 102 pJ. The experimental results are successfully interpreted by making use of modal analysis and solving the appropriate nonlinear equations.

scholarly journals Ultrahigh-efficiency wavelength conversion in nanophotonic periodically poled lithium niobate waveguides

Optica ◽  
2018 ◽  
Vol 5 (11) ◽  
pp. 1438 ◽  
Author(s):  
Cheng Wang ◽  
Carsten Langrock ◽  
Alireza Marandi ◽  
Marc Jankowski ◽  
Mian Zhang ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Wavelength Conversion ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate
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