Fig. 5: AM comb dynamics in QD laser | Light: Science & Applications

Fig. 5: AM comb dynamics in QD laser

From: Broadband quantum-dot frequency-modulated comb laser

Fig. 5: AM comb dynamics in QD laserThe alternative text for this image may have been generated using AI.

a Mapping of the 10-dB optical bandwidth under different biases on the gain and the SA. b Mapping of the average side-mode-suppression-ratio (SMSR) among the central 20 comb lines under different biases on the gain and the SA. c Mapping of the RF beatnote intensity under different biases on the gain and the SA. AM, amplitude-modulated dominant operation; FM, frequency-modulated dominant operation. d Intensity autocorrelation of an AM comb state. e Optical spectrum of an AM comb state. The gain current is 45 mA and the SA reverse voltage is –4.5 V

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