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Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest
Fiber-laser output power (W) Confined-gain laser C o n v e n t i o n a l l a s e r Averaged measured M 2 E18306 • Richard Roides and Zhuo Jiang • Modeling work funded by: • Experimental work funded by: • Fibers provided by: Confining the gain to the center of the fiber core provides an exceptional degree of spatial filtering E18307 • The beam quality in conventional fiber lasers and amplifiers degrades with increasing pump power due to transverse spatial hole burning • Proper radial tailoringdoi:10.1364/fio.2009.fthd5 fatcat:6m72xesab5gwnbqryag4m6ne4u