Power scaling of continuous-wave second harmonic generation in MgO:PPLN ridge waveguide and the application to compact wavelength conversion module

2021 ◽  
Author(s):  
Chun-Yu Cho ◽  
Jui-Yu Lai ◽  
Chen-Shao Hsu ◽  
Yu-Tai Huang ◽  
Jeng-Han Jang ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Wavelength Conversion ◽  
Continuous Wave ◽  
Second Harmonic ◽  
Ridge Waveguide ◽  
Power Scaling

Multicrystal, continuous-wave, single-pass second-harmonic generation with 56% efficiency

2010 ◽  
Vol 35 (20) ◽  
pp. 3513 ◽  
Author(s):  
G. K. Samanta ◽  
S. Chaitanya Kumar ◽  
Kavita Devi ◽  
M. Ebrahim-Zadeh
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Continuous Wave ◽  
Second Harmonic ◽  
Single Pass

Continuous wave second-harmonic generation using domain-disordered quasi-phase matching waveguides

2009 ◽  
Vol 94 (15) ◽  
pp. 151107 ◽  
Author(s):  
Sean J. Wagner ◽  
Barry M. Holmes ◽  
Usman Younis ◽  
Amr S. Helmy ◽  
J. Stewart Aitchison ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Continuous Wave ◽  
Second Harmonic ◽  
Phase Matching ◽  
Quasi Phase Matching

Second Harmonic Generation Characteristics of Continuous Wave Narrow-Linespectrum All Fiber Amplifier in PPSLT

2012 ◽  
Vol 39 (3) ◽  
pp. 0302005
Author(s):  
焦梦丽 Jiao Mengli ◽  
吕新杰 Lü Xinjie ◽  
刘驰 Liu Chi ◽  
袁烨 Yuan Ye ◽  
漆云凤 Qi Yunfeng ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Continuous Wave ◽  
Second Harmonic ◽  
Fiber Amplifier

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.

scholarly journals Low-Power Continuous-Wave Second Harmonic Generation in Semiconductor Nanowires

2018 ◽  
Vol 12 (10) ◽  
pp. 1800126 ◽  
Author(s):  
Qingchen Yuan ◽  
Liang Fang ◽  
He Yang ◽  
Xuetao Gan ◽  
Vladislav Khayrudinov ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Low Power ◽  
Harmonic Generation ◽  
Continuous Wave ◽  
Second Harmonic ◽  
Semiconductor Nanowires

scholarly journals Tunable continuous wave emission via phase-matched second harmonic generation in a ZnSe microcylindrical resonator

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
N. Vukovic ◽  
N. Healy ◽  
J. R. Sparks ◽  
J. V. Badding ◽  
P. Horak ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Amorphous Materials ◽  
Continuous Wave ◽  
Frequency Comb ◽  
Second Harmonic ◽  
Red Light ◽  
Nonlinear Phenomena ◽  
Optical Processing ◽  
Crystalline Materials

Abstract Whispering gallery mode microresonators made from crystalline materials are of great interest for studies of low threshold nonlinear phenomena. Compared to amorphous materials, crystalline structures often exhibit desirable properties such as high indices of refraction, high nonlinearities and large windows of transparency, making them ideal for use in frequency comb generation, microlasing and all-optical processing. In particular, crystalline materials can also possess a non-centrosymmetric structure which gives rise to the second order nonlinearity, necessary for three photon processes such as frequency doubling and parametric down-conversion. Here we report a novel route to fabricating crystalline zinc selenide microcylindrical resonators from our semiconductor fibre platform and demonstrate their use for tunable, low power continuous wave second harmonic generation. Visible red light is observed when pumped with a telecommunications band source by a process that is phase-matched between different higher order radial modes, possible due to the good spatial overlap between the pump and signal in the small volume resonator. By exploiting the geometrical flexibility offered by the fibre platform together with the ultra-wide 500–22000 nm transmission window of the ZnSe material, we expect these resonators to find use in applications ranging from spectroscopy to quantum information systems.

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