Fig. 4: Wavemeter performance.
From: kHz-precision wavemeter based on reconfigurable microsoliton
a The wavemeter measures a probe laser with varying frequency of the pattern USTC. b, c Time-series measurements of the frep and fbeat when the frep is locked to a microwave reference with feedback to the auxiliary laser. The gate time of the measurement is 100 ms. d Allan deviation of the unlocked (hollow red circles) and locked frep (solid red circles). At measurement time of 1 s and 512 s, the frequency stability of the locked repetition rate reaches 337 Hz and 12 Hz, respectively. e Comparison of Allan deviation of the comb line (μ = 17) for unlocked (hollow orange circles) and locked state (solid orange circles). At measurement time of 1 s and 512 s, the frequency stability of the lock comb line reaches 17 kHz and 1.1 kHz, respectively. Error bars represent a 68% confidence interval.
