6533b7d8fe1ef96bd1269b2e
RESEARCH PRODUCT
Spatial hole burning in thin-disk lasers and twisted-mode operation.
Gunther WichmannKlaus KirchAldo AntogniniRandolf PohlKarsten SchuhmannF. Nezsubject
PhysicsHigh power lasersbusiness.industryWavelength selectivityFOS: Physical sciences02 engineering and technologyPolarizerLaser01 natural sciencesAtomic and Molecular Physics and Opticslaw.invention010309 optics020210 optoelectronics & photonicsOpticsThin disklaw0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringbusinessEngineering (miscellaneous)Saturation (magnetic)Physics - OpticsOptics (physics.optics)description
Spatial hole burning prevents single-frequency operation of thin-disk lasers when the thin disk is used as a folding mirror. We present an evaluation of the saturation effects in the disk for disks acting as end-mirrors and as folding-mirrors explaining one of the main obstacles towards single-frequency operation. It is shown that a twisted-mode scheme based on a multi-order quarter-wave plate combined with a polarizer provides an almost complete suppression of spatial hole burning and creates an additional wavelength selectivity that enforces efficient single-frequency operation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-04-05 | Applied optics |