Abstract
Through numerical simulations, we study the effects of weak continuous wave (CW) or weak pulse triggering on the picosecond (ps) pulse pumped supercontinuum (SC) generation. To actively improve the spectral broadening and control both phase and intensity stability of the SC generation, we fix the frequency shift of the trigger pulse (with respect to the pump signal) with different durations and then tune the peak power. Detailed simulation results show that either a weak CW or weak pulse trigger can greatly improve the spectral broadening of SC spectrum generated by a ps pulse pump. Compared to weak CW trigger, a weak femtosecond (fs) pulse or ps pulse trigger can assist the generation of SC with much better coherence and SNR, but precise control of the time delay between the pump and trigger is required.
Original language | English |
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Pages (from-to) | 1506-1512 |
Number of pages | 7 |
Journal | IEEE Journal of Lightwave Technology |
Volume | 38 |
Issue number | 6 |
Early online date | 22 Jan 2020 |
DOIs | |
Publication status | Published - 15 Mar 2020 |
Keywords
- supercontinuum generation
- nonlinear optics
- optical fibers
- modulation instability
- Modulation instability