A higher-order-mode erbium-doped-fiber amplifier

A higher-order-mode erbium-doped-fiber amplifier

We demonstrate the first erbium-doped fiber amplifier operating in a single, large-mode area, higher-order mode. A high-power, fundamental-mode, Raman fiber laser operating at 1480 nm was used as a pump source. Using a UV-written, long-period grating, both pump and 1564 nm signal were converted to t...

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Veröffentlicht in:Optics express 2010-08, Vol.18 (17), p.17651-17657
Hauptverfasser: Nicholson, J W, Fini, J M, DeSantolo, A M, Monberg, E, DiMarcello, F, Fleming, J, Headley, C, DiGiovanni, D J, Ghalmi, S, Ramachandran, S
Format: Artikel
Sprache:eng
Schlagworte:
Amplifiers, Electronic
Erbium
Lasers
Optical Fibers
Scattering, Radiation
Spectrum Analysis, Raman - instrumentation
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Zusammenfassung:We demonstrate the first erbium-doped fiber amplifier operating in a single, large-mode area, higher-order mode. A high-power, fundamental-mode, Raman fiber laser operating at 1480 nm was used as a pump source. Using a UV-written, long-period grating, both pump and 1564 nm signal were converted to the LP(0,10) mode, which had an effective area of 2700 microm(2) at 1550 nm. A maximum output power of 5.8 W at 1564 nm with more than 20 dB of gain in a 2.68 m long amplifier was obtained. The mode profile was undistorted at the highest output power.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.017651