6533b852fe1ef96bd12aad23
RESEARCH PRODUCT
Mode locking of an all-fiber laser by acousto-optic superlattice modulation
Martina Delgado-pinarMiguel V. AndrésAntonio DiezJose Luis CruzChristian Cuadrado-labordesubject
Materials sciencebusiness.industryPhysics::OpticsLaserAtomic and Molecular Physics and Opticslaw.inventionLaser linewidthOpticsMode-lockingFiber Bragg gratingModulationlawFiber laserbusinessFrequency modulationJitterdescription
Active mode locking of an erbium-doped all-fiber laser with a Bragg-grating-based acousto-optic modulator is demonstrated. The fiber Bragg grating was acoustically modulated by a standing longitudinal elastic wave, which periodically modulates the sidebands at twice the acoustic frequency. The laser has a Fabry-Perot configuration in which cavity loss modulation is achieved by tuning the output fiber Bragg grating to one of the acoustically induced sidebands. Optical pulses at 9 MHz repetition rate, 120 mW peak power, and 780 ps temporal width were obtained. The output results to be stable and has a timing jitter below 40 ps. The measured linewidth, 2.8 pm, demonstrates that these pulses are transform limited.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-04-03 |