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Figure 18 | Nanoscale Research Letters

Figure 18

From: Submonolayer Quantum Dots for High Speed Surface Emitting Lasers

Figure 18

Small signal modulation parameters for a 6 μm SML QD-VCSEL at 25 and 85 °C, obtained from fitting the modulation response to the three-parameter transfer function: (a) —3 dB bandwidth and (b) resonance frequency as a function of the square root of the current above threshold, (c) damping rate vs. squared resonance frequency. The maximum -3 dB bandwidth is 15 and 13 GHz, respectively

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