Erbium fiber laser based on intracore femtosecond-written fiber Bragg grating.
We report the inscription of fiber Bragg gratings (FBGs) into a nonphotosensitive Er-doped fiber by using a phase-mask scanning technique with near IR femtosecond laser pulses. A grating of 40 mm length with a period of 1.075 microm was realized. We measured transmission losses of -18.9 dB at lambda=1554.5 nm with a FWHM bandwidth of 0.15 nm. By pumping the fiber containing the fabricated FBG, it was possible to realize a fiber laser with an output power of 38 mW, a slope efficiency of 21.1%, and low noise (SNR=60 dB).
Wikszak
Elodie
E
Institute of Applied Physics, Friedrich-Schiller-University, Max-Wien-Platz 1, D-07743 Jena, Germany. wikszak@iap.uni-jena.de
Thomas
Jens
J
Burghoff
Jonas
J
Ortaç
Bülend
B
Limpert
Jens
J
Nolte
Stefan
S
Fuchs
Ulrike
U
Tünnermann
Andreas
A