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. 2014 Apr 15;4:4696. doi: 10.1038/srep04696

Figure 3. Laser spiking output under external periodic forcing.

Figure 3

Time trace of the laser intensity when the modulation amplitude is (a), 31.2 mV (1.6% of the DC current); (b), 70.2 mV (3.6% of the DC current); other parameters are as indicated in Methods. The effect of the forcing is clearly visible in the laser intensity. (c), Schematic representation of the experimental setup, where the forcing is included as a direct modulation of the laser pump current. LD stands for laser diode, WG for waveform generator, BS for beamsplitter, PD for photodetector, OSC for oscilloscope and M for mirror (see Methods).