Picosecond-pulse wavelength conversion based on cascaded second-harmonic generation-difference frequency generation in a periodically poled lithium niobate waveguide

2006 ◽  
Vol 45 (21) ◽  
pp. 5391 ◽  
Author(s):  
Yong Wang ◽  
Jorge Fonseca-Campos ◽  
Chang-Qing Xu ◽  
Shiquan Yang ◽  
Evgueni A. Ponomarev ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Wavelength Conversion ◽  
Second Harmonic ◽  
Difference Frequency Generation ◽  
Picosecond Pulse ◽  
Difference Frequency ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate

Flattop Broadband Wavelength Conversion Based on Cascaded Second-Harmonic Generation and Difference Frequency Generation in Step-Segmented Quasi-Phase Matched Gratings

2014 ◽  
Vol 989-994 ◽  
pp. 3790-3793
Author(s):  
Hai Dong Wu ◽  
Jin Song Guo ◽  
Yun Wen Wu ◽  
Zhao Xia Wang
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Wavelength Conversion ◽  
Second Harmonic ◽  
Difference Frequency Generation ◽  
Difference Frequency ◽  
Double Pass ◽  
Single Pass ◽  
Frequency Generation ◽  
Matching Response

Bandwidth enhancement and response flattening of wavelength conversion based on single-pass and double-pass cascaded second harmonic generation and difference frequency generation in step-segmented quasi-phase matched (QPM) gratings are investigated. For the same waveguide length, high conversion efficiency, flat response and broad signal bandwidth can be obtained simultaneously by optimizing the poling period of the step-segmented QPM structure. The conversion bandwidths in a 3-cm-long five-step-segmented waveguide are 134 nm for single-pass scheme and 132 nm for the double-pass one, respectively, which are both over the whole conventional band and long-wavelength band. The ripple on the matching response can keeps less than 0.2 dB as well.

42%-efficient single-pass cw second-harmonic generation in periodically poled lithium niobate

1997 ◽  
Vol 22 (24) ◽  
pp. 1834 ◽  
Author(s):  
G. D. Miller ◽  
R. G. Batchko ◽  
W. M. Tulloch ◽  
D. R. Weise ◽  
M. M. Fejer ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate ◽  
Single Pass

scholarly journals Efficient and highly tunable second-harmonic generation in Z-cut periodically poled lithium niobate nanowaveguides

2020 ◽  
Vol 45 (13) ◽  
pp. 3789
Author(s):  
Jia-Yang Chen ◽  
Chao Tang ◽  
Zhao-Hui Ma ◽  
Zhan Li ◽  
Yong Meng Sua ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate
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