The Impact of Dispersion on Amplitude and Frequency Noise in a Yb-fiber Laser Comb

Details The Impact of Dispersion on Amplitude and Frequency Noise in a Yb-fiber Laser Comb The Impact of Dispersion on Amplitude and Frequency Noise in a Yb-fiber Laser Comb

2011-02-15

arxiv.org/abs/1102.2983v1

Physics

Optics

Scientific paper

We describe a Yb-fiber based laser comb, with a focus on the relationship between net-cavity dispersion and the frequency noise on the comb. While tuning the net cavity dispersion from anomalous to normal, we measure the amplitude noise (RIN), offset frequency (f_CEO) linewidth, and the resulting frequency noise spectrum on f_CEO. We find that the laser operating at zero net-cavity dispersion has many advantages, including an approximately 100x reduction in free-running f_CEO linewidth and frequency noise power spectral density between laser operation at normal and zero dispersion. In this latter regime, we demonstrate a phase-locked f_CEO beat with low residual noise.

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