| Title |
Missing Modes in Fabry-Perot Laser Diodes |
| Keywords |
Fabry-Perot laser diode ; missing modes ; longitudinal mode spectrum ; edge ripple ; active layer ; TDLM(time domain laser model) |
| Abstract |
Mode missing of Fabry-Perot laser diodes has been modeled using the time domain laser model(TDLM). Fabry-Perot laser diodes that have structure of ripple in the waveguide of active layer or defects inside the active layer were simulated. For accurate simulation, the nonlinear effects were included such as spatial hole burning(SHB) and gain saturation. From the simulation results, it was founded that the defect inside the active layer in laser diodes has a strong influence on mode missing rather than the waveguide ripple. The simulation results are confirmed with the fabricated Fabry-Perot laser diodes by measuring the longitudinal mode spectra as a function of temperature from 25[℃] to 85[℃]. |