.Novel intra-cavity self-organization coherent erbium-doped fiber laser[J].Optoelectronics Letters,2007,3(2):106-108 Novel intra-cavity self-organization coherent erbium-doped fiber laser JIA Xiu-jie LIU Feng-nian FU Sheng-gui ZHANG Jian LIU Yan-ge GUO Zhan-cheng YUAN Shu- zhong KAI Gui-yun DONG Xiao-yi Institute of Modern Optics, Nankai University, Tianjin, 300071, China Abstract:       A novel all-fiber self-organization coherent Erbium-doped fiber laser is proposed and demonstrated. The laser system is composed of two independent lasers. When each of the two branch lasers operates independently, the output power is 10.41 mW and 8.69 mW respectively. By adjusting a polarization controller (PC), the two lasers achieve coherent coupling,and the output power is 24.4 mW, which is more than two times that the single laser yields. Furthermore, we bring forward and discuss the factor estimating the effect of coherent combination-coherent coupling factor. The value of growth factor to evaluate the effect of coherent combining is 1.27. The coherent fiber laser has the advantages of simple structure, high efficiency and single frequency, which conduce to coherent coupling easily. Hits: 3959 Download times: 194 View Full Text    Download reader