Fig. 1. Physical model of the laser. (a) Structure of the chip epitaxial; (b) band diagram; (c) basic structure of the laser

Fig. 2. Equivalent circuit model of a multi-quantum-well laser

Fig. 3. Schematic diagram of pulse drive circuit

Fig. 4. Output laser pulse waveforms under different cavity lengths

Fig. 5. Output laser pulse waveforms with different widths of active region

Fig. 6. Output laser pulse waveforms at different optical facet reflectivity values. (a) Left optical facet; (b) right optical facet

Fig. 7. Output laser pulse waveforms at different cavity losses

Fig. 8. Output laser pulse waveforms for different gain suppression factors and spontaneous emission factors. (a) Different gain suppression factors; (b) different spontaneous emission factors

Fig. 9. Waveforms of laser input current and output pulse

Fig. 10. Waveforms of laser input current and output laser pulse for different package parasitic inductances

Fig. 11. Waveforms of laser input current and output laser pulse for different package parasitic resistances

Fig. 12. Waveforms of laser positive voltage. (a) Laser with TO9 package; (b) laser with COB package

Fig. 13. Waveforms of laser pulse. (a) Laser with TO9 package; (b) laser with COB package

Fig. 14. Simulated and measured optical pulse waveforms of the laser transmitter module. (a) Laser with TO9 package; (b) laser with COB package