FIG 1 (IMAGE) Compuscript Ltd Caption Fig. 1 Soliton comb generation from polygon modes. (a) Simulated group velocity dispersion curves of the fundamental transverse-electrically polarized WGM (TE0 mode) and the square mode, exhibiting normal dispersion and anomalous dispersion in the telecom band, respectively. Inset: scanning electron microscope (SEM) image of the fabricated microdisk, and the scale bar is 20 mm. (b) The spectrum of the soliton microcomb generated by cavity square mode. Inset: The optical micrograph of the polygon modes. Credit OEA Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.