6533b839fe1ef96bd12a629e
RESEARCH PRODUCT
Observability of the Risken–Nummedal–Graham–Haken instability in Nd:YAG lasers
Germán J. De ValcárcelJavier F. UrchueguíaEugenio RoldánJose Manuel Guerrasubject
Laser ultrasonicsPhysicsbusiness.industryTi:sapphire laserPhysics::Opticschemistry.chemical_elementStatistical and Nonlinear PhysicsLaser pumpingLaserNeodymiumAtomic and Molecular Physics and Opticslaw.inventionOpticschemistrylawFiber laserDiode-pumped solid-state laserbusinessTunable laserdescription
Multilongitudinal mode instability in ring Nd:YAG lasers is theoretically analyzed. After we review the way in which the standard two-level laser theory applies to this laser we extend the theoretical treatment to include transverse effects. We do this by taking into account the finite transverse section of the active medium and by assuming a Gaussian transverse distribution for the intracavity field. Finally we demonstrate that multimode emission develops whenever the intracavity field waist diameter is almost equal to the active rod diameter. We conclude that continuous-wave diode-pumped Nd:YAG lasers with low cavity losses are good candidates for the observation of the Risken–Nummedal–Graham–Haken instability.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-05-01 | Journal of the Optical Society of America B |