Experimental study of a symmetrically-pumped distributed feed-back Erbium-doped fiber laser with a tunable phase shift
✍ Scribed by Yu.O. Barmenkov; A.V. Kir'yanov; P. Pérez-Millán; J.L. Cruz; M.V. Andrés
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 123 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1612-2011
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✦ Synopsis
We report an experimental study of a symmetrically-pumped distributed feed-back (DFB) Erbium-doped fiber laser (EFL) with a tunable phase shift induced in the center of the laser cavity. The tunable phase shift is produced using a magnetostrictive transducer. We demonstrate that lasing is observed in our experimental arrangement at any value of the phase shift that is owing to a noticeable birefringence induced by the latter. The laser wavelength is shown to periodically change with increasing pump power due to the fiber heating, which stems from the Stokes loss, the excited state absorption and Auger up-conversion in Erbium, and high thermal expansion coefficient of the magnetostrictive transducer.