Fig. 2: Design of the microdisk resonator (MDR). | Nature Communications

Fig. 2: Design of the microdisk resonator (MDR).

From: Hybrid Fourier-domain mode-locked laser for ultra-wideband linearly chirped microwave waveform generation

Fig. 2

a Perspective view of the thermally tunable MDR. b Cross-sectional view of the MDR along the dashed line AA’ shown in (a). c Micrograph of the fabricated MDR. d Spectral response of the MDR from the drop port. e Zoom-in view of the WGM1,107, the 3-dB bandwidth is 72 pm. f Spectrum tuning of the MDR by applying a voltage to the micro-heater.

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