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首页> 外文期刊>Optics and Lasers in Engineering >Study Of Quasi-phase Matching Wavelength Acceptance Bandwidth For Periodically Poled Linbo_3 Crystal-based Difference-frequency Generation
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Study Of Quasi-phase Matching Wavelength Acceptance Bandwidth For Periodically Poled Linbo_3 Crystal-based Difference-frequency Generation

机译：周期极化Linbo_3晶体差频产生的准相位匹配波长接受带宽研究

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摘要

The temperature tuning characteristics of quasi-phase matching (QPM) wavelength acceptance bandwidth in a uniform periodically poled lithium niobate (PPLN) based on difference-frequency generation (DFG) are studied theoretically and experimentally. This paper proposes a PPLN device consisting of several segments of different temperatures to obtain a more desirable performance for the QPM-DFG. The result shows that through the tuning of temperature, the bandwidth can be changed considerably and the method was proved suitable and accurate to calculate QPM wavelength acceptance bandwidth of DFG in a uniform PPLN crystal for temperatures between room temperature and 180 ℃ and mid-infrared (mid-IR) wavelengths ranging from 2.8 to 4.8 μm.
机译：从理论上和实验上研究了基于差频产生（DFG）的均匀周期性极化铌酸锂（PPLN）中准相位匹配（QPM）波长接收带宽的温度调谐特性。本文提出了一种由不同温度的几个部分组成的PPLN器件，以获得QPM-DFG的更理想的性能。结果表明，通过温度调节，可以显着改变带宽，并且证明该方法适用于在室温至180℃之间以及中红外温度下均匀PPLN晶体中计算DFG的QPM波长接受带宽。中红外）波长范围从2.8到4.8μm。

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