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Investigation into the impact of the recovery time of a saturable absorber for stable dissipative soliton generation in Yb-doped fiber lasers
- Source :
- Optics Express. 29:21978
- Publication Year :
- 2021
- Publisher :
- Optica Publishing Group, 2021.
-
Abstract
- In this study, we conduct a numerical evaluation of the impact of the recovery time of a saturable absorber (SA) on the output performance of an Yb-doped fiber laser operating in the dissipative soliton regime. Particularly, we evaluate the output pulse characteristics, such as the pulse width, spectral bandwidth, pulse peak power, and pulse energy depending on the change in recovery time. Applying a too-slow SA recovery time above a certain critical value is shown to make the output pulse unstable and broken. Furthermore, we demonstrate that there is an optimum recovery time range for stable dissipative soliton pulse generation, depending on the cavity dispersion and modulation depth of the SA. Further, we perform an additional numerical simulation of the pulse compression to demonstrate the relationship between the output dechirped pulse width and SA recovery time. The optimum approach for the generation of the shortest dechirped pulses in the dissipative soliton regime will be to construct a fiber laser cavity with a small normal cavity group velocity dispersion and use an SA with an appropriate recovery time.
- Subjects :
- Materials science
business.industry
Saturable absorption
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Atomic and Molecular Physics, and Optics
law.invention
Pulse (physics)
010309 optics
Dissipative soliton
Optics
law
Pulse compression
Fiber laser
Optical cavity
0103 physical sciences
Dispersion (optics)
0210 nano-technology
business
Pulse-width modulation
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 29
- Database :
- OpenAIRE
- Journal :
- Optics Express
- Accession number :
- edsair.doi.dedup.....48a793f434db6a25870ddbd46fced15c