Li Li, Lin Li, Jiaju Ying, Gang Li, Yuanbo Wang. Performance Improvement of 1550 nm Pulse Laser Diode Transmitter Module Using Equivalent Electrical Circuit Analysis[J]. Laser & Optoelectronics Progress, 2024, 61(9): 0914009
- Laser & Optoelectronics Progress
- Vol. 61, Issue 9, 0914009 (2024)
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
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Table 1. Measured and simulated data in different packaging conditions
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