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The linewidth of a mode-locked laser's frequency comb induced by spontaneous emission, or quantum noise, is shown to obey different scaling laws in the linear-dispersionless, i.e., Schawlow-Townes, nonlinear-dispersive, or pure soliton, and intermediate operating regimes.
Summary form only given. We report an absolute measurement of the optical frequency of a stabilized Nd:YAG laser by measuring the gap between its fundamental f/sub 1064/ and second harmonic 2f/sub 1064/ using a fs laser frequency comb which has been broadened in a silica microstructure fiber. To our knowledge, this is the first ever direct rf to optical frequency measurement using a single optical...
Summary form only given. In optical frequency metrology, it is often necessary to precisely bridge THz frequency gaps. Optical frequency combs (OFC) are one technique that have recently attracted interest. Key characteristics of OFCs include consistency of comb line spacing, center wavelength, and comb width. Previous OFCs have been constructed by placing an electro-optic modulator inside a high-finesse...
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