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Microwave and optical frequency references are simultaneously transferred through fiber using a frequency-stabilized mode-locked Er-fiber laser comb. The instability for transferred microwave and optical frequencies are 2.0times10-13 and 7.5times10-15@1 s, respectively, for 3 km transmission.
A passively mode-locked Er-fiber laser via nonlinear polarization rotation with fundamental repetition rate of 300 MHz is demonstrated. Frequency stabilization of the spectrum-broadened, octave-spanning laser comb and application to optical frequency measurement is reported.
We used a monochrometer to determine the mode number difference between two laser combs and derived the comb number without using a wavemeter or scanning the repetition rate for the semi-autometic, octave-spanning optical frequency counter.
We used a monochrometer to determine the mode number difference between two laser combs and derived the comb number without using a wavemeter or scanning the repetition rate for the semi-automatic, octave-spanning optical frequency counter.
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