An Accurate and Safe Small Raman Gain Measurement for Installed Fiber Optic Cables
Novel small Raman gain measurement method for installed fiber optic cables using a modulated pump light is proposed.We have demonstrated accurate Raman gain measurement in small Raman gain less than 1dB and we also measured Raman gain for the installed fiber optic cable by using average pumping power of about only 25mW.
作 者： Takayuki Miyakawa Yasuyuki Nagao 作者单位： KDDI R&D Laboratories Inc., 2-1-15 Ohara Kamifukuoka-shi Saitama Japan 刊 名： 光学学报 ISTIC EI PKU 英文刊名： ACTA OPTICA SINICA 年，卷(期)： 2003 23(z1) 分类号： O4 关键词：