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Opt Lett. 2010 Sep 15;35(18):3069-71. doi: 10.1364/OL.35.003069.

Raman fiber laser with 81 W output power at 1480 nm.

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  • 1OFS Laboratories, 19 Schoolhouse Road, Suite 105, Somerset, New Jersey 08873, USA. jwn@ofsoptics.com


We demonstrate a Raman fiber laser with an operating wavelength of 1480 nm and record output power of 81 W. High-power operation is enabled by a long-period grating used to frustrate backward lasing at the Stokes wavelength in the Yb-doped fiber amplifier. A cascaded Raman fiber with a long-wavelength fundamental mode cutoff enables efficient multiple Stokes scattering from 1117 to 1480 nm while preventing further unwanted scattering to 1590 nm.

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