Details

Autor(en) / Beteiligte

• Jeong, Wookjin
• Kim, Gyu-Tae
• Song, Kwang Yong
• Lee, Sang Bae
• Lee, Kwanil

Titel

Brillouin optical correlation domain analysis with over 2.5 million resolution points based on Raman amplification and injection locking

Ist Teil von

• Journal of lightwave technology, 2023-01, Vol.41 (1), p.1-7

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2023

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Xplore

Beschreibungen/Notizen

• We propose and experimentally demonstrate a long-range Brillouin optical correlation domain analysis (BOCDA) system based on distributed Raman amplification and injection-locking to reach over 2.6 million resolving points. The optimization of key parameters in the Raman amplification, time domain data processing, differential measurement scheme, and injection-locking are applied to achieve a spatial resolution of 2 cm over a 50 km sensing fiber. Our result corresponds to at least twice improvement compared to former records, and the best one among distributed Brillouin sensors in terms of the number of resolving points.