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Flattop wideband wavelength converters based on cascaded sum-and difference-frequency generation using step-chirped gratings

机译：基于阶梯chi光栅的级联求和与差频生成的平顶宽带波长转换器

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We investigate the role of step-chirped gratings (SCG) for flattening of conversion efficiency response and enhancing the pump bandwidth in cascaded sum and difference frequency generation (SFG + DFG) with a large pump wavelength difference. To obtain a flat response with maximum efficiency, using SCG instead of uniform grating with the same length, the appropriate critical period shifts are presented for the reasonable number of sections and chirp steps feasible for fabrication. Furthermore, it is shown that adding the section numbers for SCG structure increases the pump bandwidth.

机译：我们研究了阶梯grating光栅（SCG）在平坦化转换效率响应和增强泵浦带宽时的作用，该泵浦级联和和具有较大泵浦波长差的差分频率生成（SFG + DFG）。为了获得最大效率的平坦响应，使用SCG代替具有相同长度的均匀光栅，针对合理数量的截面和适合制造的chi步骤，提出了适当的临界周期偏移。此外，还显示出为SCG结构添加段号会增加泵浦带宽。

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《》|2011年|p.79171D.1-79171D.8|共8页
会议地点 San Francisco CA(US)
作者
Amirhossein Tehranchi; Raman Kashyap;
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作者单位

Advanced Photonics Concepts Laboratory, Department of Electrical EngineeringEcole Polytechnique, University of MontrealC.P. 6079, Succ. Centre-ville, Montreal H3C 3A7, Canada;

rnDepartment of Engineering Physicsb, Ecole Polytechnique, University of MontrealC.P. 6079, Succ. Centre-ville, Montreal H3C 3A7, Canada;

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原文格式 PDF
正文语种 eng
中图分类非线性光学（强光与物质的作用）;
关键词
Chirped grating; sum frequency generation; difference frequency generation; quasi phase matching; lithiumniobate waveguide; wavelength converter;

机译：grating光栅总频率产生；差频产生；准相位匹配；铌酸锂波导波长转换器;

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专利

1. Flattop Efficient Cascaded χ (SFG + DFG)-Based Wideband Wavelength Converters Using Step-Chirped Gratings [J] . Tehranchi A., Kashyap R. Selected Topics in Quantum Electronics, IEEE Journal of . 2012,第2期

机译：使用阶梯状光栅的基于平顶高效级联χ（SFG + DFG）的宽带波长转换器
2. Design of Novel Unapodized and Apodized Step-Chirped Quasi-Phase Matched Gratings for Broadband Frequency Converters Based on Second-Harmonic Generation [J] . Tehranchi A., Kashyap R. Journal of Lightwave Technology . 2008,第3期

机译：基于二次谐波生成的新型变径和变径步进阶梯式准相位匹配光栅设计
3. Ultrabroadband flattop wavelength conversion based on cascaded sum frequency generation and difference frequency generation using pump detuning in quasi-phase-matched lithium niobate waveguides [J] . Meenu Ahlawat, Amirhossein Tehranchi, Chang Qing Xu, Applied optics . 2011,第25期

机译：准相位匹配铌酸锂波导中基于泵浦失谐的级联和频产生和差频产生的超宽带平顶波长转换
4. Flexible tunable wavelength conversion exploiting cascaded sum-and difference-frequency generation in LiNbO3 waveguides [C] . . 2006

机译：利用LiNbO3波导中级联的和频和差频生成的灵活的可调波长转换
5. Current-steering digital-to-analog converter based pulse generation techniques for ultra-wideband pulse radio transmitter. [D] . Jha, Anuranjan. 2009

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Flattop wideband wavelength converters based on cascaded sum-and difference-frequency generation using step-chirped gratings

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