光栅型光谱仪波长准确度校准方法

Opto-electronic Engineering(2014)

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Abstract
针对低压汞灯谱线能量弱且量值无法溯源的难题,本文以1064 nm单块固体环形激光器作为基频光,经过两次倍频分别得到532 nm、266 nm激光,通过调制转移光谱技术将532 nm激光频率锁定在碘分子超精细谱线上,以此为基础对光栅型光谱仪的波长准确度进行校准。实验结果表明,稳频波长源输出的三波长具有严格的倍数关系,能够准确有效地对光栅型光谱仪波长准确度进行校准,具有很好的实际应用价值。
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Key words
wavelength linearity,spectrometer
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