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《Journal of Optoelectronics.Laser》 2009-01
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Investigation of idler optical spectrum broadening suppression by utilizing sinusoidal phase modulation

JIANG Yang1,2,YU Jin-long2,ZHANG Ai-xu2,HU Lin1,ZHANG Li1(1.Laboratory for Photoelectric Technology and Applictio,Guizhou University,Guiyang 550025,China;2.School of Electronic Information Engineering,Tianjin Univrsity,Key Laboratory of Opto-electronic Information Science and Technology,EMC,Tianjin 300072,China)  
In order to suppress the stimulated Brillouin scattering and the idler optical spectrum broadening,a sinusoidal counter-phase phase modulation scheme is proposed through theoretically analyzing the affect of idler optical spectrum broadening due to the phase modulation on the pump light in a dual-pumped fiber optical parametric amplification system.By utilizing 300 MHz and 900 MHz coupled sinusoidal signal as a modulation signal,the scheme is demonstrated and the ideal idler is obtained.Compared with the traditional method,where the PRBS is used as the modulation signal,we find that the use of sinusoidal signal provides better tolerance for the performance of system components.
【Fund】: 国家高技术研究发展计划“863”资助项目(2007AA01Z272);; 贵州省科学技术基金资助项目(20082045);; 贵州省国际科技合作重点项目计划资助项目(黔科合外G字(2007)400112号)
【CateGory Index】: TN929.11
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