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RESEARCH PRODUCT
Influence of Cavity Loss Upon Performance of Q-Switched Erbium-Doped Fiber Laser
Miguel V. AndrésLuis Escalante-zarateS. A. KolpakovYuri O. BarmenkovJose Luis CruzAlexander V. Kir'yanovsubject
Materials sciencebusiness.industryPhysics::OpticsCharge (physics)LaserResidualAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionOpticslawFiber laserFiberLaser power scalingElectrical and Electronic EngineeringbusinessAbsorption (electromagnetic radiation)Erbium doped fiber lasersdescription
Performance of an actively Q-switched erbium-doped fiber laser in function of intracavity loss is discussed. We show experimentally and theoretically (employing a distributed model that takes into account two contra-propagating laser waves) that the laser performance strongly depends on the intracavity loss of different kinds. We reveal in particular that the dominant source of smaller than expected pulse energy is the loss via excited-state absorption, inherent in erbium-doped fibers. We also discuss the other important processes involved in active Q-switching, such as passive losses and residual active fiber charge, the impact of which is clarified by a straightforward comparison of the modeling versus experiment.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-05-01 | IEEE Photonics Technology Letters |