GHz-rate 57-fs acousto-optic mode-locking fiber laser based on cascaded all-fiber pulse compression.
Opt Lett
; 49(11): 2982-2985, 2024 Jun 01.
Article
in En
| MEDLINE
| ID: mdl-38824308
ABSTRACT
We demonstrate a compact ultrafast fiber laser system that can deliver 1.87â
GHz pulse train at 1550â
nm with a pulse energy of 52â
pJ and an ultrashort pulse duration of 57â
fs. While an acousto-optic mode-locking fiber laser was used as the seed light source at GHz rate, a stage of Er-doped fiber amplifier boosted the laser power to â¼320â
mW, giving a pulse energy of â¼170â
pJ. Then, a pulse compression setup was constructed, providing a high compression ratio of â¼10 with a total efficiency of â¼32%. In the cascaded compression configuration, multiple fiber samples with alternately normal and anomalous dispersion were fused together, providing efficient nonlinear spectral broadening while suppressing excessive pulse broadening over propagation. This GHz-rate ultrafast fiber laser, with compact configuration, broad optical spectrum, and high time-resolving ability could be used as the seed light source for constructing high-rate, high-power ultrafast laser systems and may find a few applications in optical measurements and microwave photonics.
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01-internacional
Database:
MEDLINE
Language:
En
Journal:
Opt Lett
Year:
2024
Document type:
Article
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