<p>Multi-cladding optical fibers to be used in the context of fiber amplifiers and fiber lasers are described herein. Embodiments of optical fibers include a rare-earth doped core into which the signal field is to be amplified. The doped core is surrounded by multiple claddings that guide the pump field to be absorbed by the reactive core material. The first cladding has a depressed refractive index to improve high-order mode bending losses without incurring significant fundamental mode bending losses.</p>
申请公布号
WO2009089608(A1)
申请公布日期
2009.07.23
申请号
WO2008CA00085
申请日期
2008.01.17
申请人
INSTITUT NATIONAL D'OPTIQUE;PARE, CLAUDE;LAPERLE, PIERRE;ZHENG, HUIMIN;CROTEAU, ANDRE
发明人
PARE, CLAUDE;LAPERLE, PIERRE;ZHENG, HUIMIN;CROTEAU, ANDRE