SBS Mitigation in a Microstructured Optical Fiber by Periodically Varying the Core Diameter

B. Stiller (1) , Alexandre Kudlinski (2) , M.W. Lee (1) , G. Bouwmans (2) , M. Delqué (1) , J.-C. Beugnot (1) , H. Maillotte (1) , T. Sylvestre (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
2 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523

In this letter, we experimentally demonstrate a 4-dB increase of the stimulated Brillouin scattering threshold in a microstructured optical fiber. This result is obtained by periodically varying the size of the air-hole structure by only 7% amplitude, while keeping a low attenuation coefficient. The efficiency of this passive technique is verified by use of the Brillouin echoes-distributed sensing technique where the Brillouin frequency-shift oscillation is clearly observed.

Domaines: Optique / photonique

B. Stiller, Alexandre Kudlinski, M.W. Lee, G. Bouwmans, M. Delqué, et al.. SBS Mitigation in a Microstructured Optical Fiber by Periodically Varying the Core Diameter. IEEE Photonics Technology Letters, 2012, 24 (8), pp.667-669. ⟨10.1109/LPT.2012.2186286⟩. ⟨hal-00707865⟩