Kilowatt-power Er3+ doped cladding fiber amplifier

Galina Nemova; Raman Kashyap

doi:10.1117/12.807127

12 August 2008 Kilowatt-power Er³⁺ doped cladding fiber amplifier

Galina Nemova, Raman Kashyap

Proceedings Volume 7099, Photonics North 2008; 70990Y (2008) https://doi.org/10.1117/12.807127
Event: Photonics North 2008, 2008, Montréal, Canada

Abstract

A novel theoretical scheme for high-power Er³⁺ doped fiber amplifier assisted with a long period grating (LPG) is presented. This device consists of an Er³⁺ doped cladding pumped with a high power laser at a wavelength 1480 nm and un-doped core. The LPG imprinted into the fiber core at the beginning of the Er³⁺ doped region transfers a weak signal entering the amplifier in the core-mode of a single mode fiber into a cladding mode, dramatically increasing the effective mode-area of the signal and the threshold powers for unwanted nonlinear effects such as stimulated Raman and Brillouin scattering. The output fiber with the large core provides a high quality output beam.

Citation Download Citation

Galina Nemova and Raman Kashyap "Kilowatt-power Er³⁺ doped cladding fiber amplifier", Proc. SPIE 7099, Photonics North 2008, 70990Y (12 August 2008); https://doi.org/10.1117/12.807127

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