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Method for measuring and suppressing repetition rate phase noise of femtosecond laser using optical fiber delay line
Method for measuring and suppressing repetition rate phase noise of femtosecond laser using optical fiber delay line
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机译:利用光纤延迟线测量和抑制飞秒激光器重复频率相位噪声的方法
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摘要
Provided is a method of measuring a phase noise of a repetition rate of a femtosecond laser including generating a combined signal using a first wavelength element and a second wavelength element of an optical pulse train generated by the femtosecond laser, which is mode-locked, guiding the combined signal to a first path and a second path, allowing a signal of the second path to interfere with the signal of the first path, and outputting an interfering combined signal, dividing the interfering combined signal into a first interference signal and a second interference signal, converting the interference signals to radio frequency signals, and detecting a baseband signal including a frequency noise of the repetition rate from the radio frequency signals using a mixer.
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