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    • 4. 发明专利
    • Optical transmission system
    • 光传输系统
    • JP2012015692A
    • 2012-01-19
    • JP2010148717
    • 2010-06-30
    • Fujitsu Ltd富士通株式会社
    • SUGAYA YASUSHIFUJITA TAKEHIRO
    • H01S3/06H01S3/067H04B10/29H04B10/294
    • H01S3/06762H01S3/06766H01S3/06775H01S2301/06H04B10/2572H04B10/2941
    • PROBLEM TO BE SOLVED: To boost OSNR of a signal light having a wavelength in a wavelength range where PHB (Polarization Hole-Burning) is generated depending on a characteristic of an optical amplifier.SOLUTION: An optical transmission system includes: an optical transmitter 1 for transmitting a signal light to a transmission path 2; an optical receiver 3 for receiving the signal light from the transmission path 2; and one or more optical amplifiers 4 placed on the transmission path 2 for amplifying the signal light. Gain characteristics of the optical amplifier 4 is controlled so that the power of the signal light, having a wavelength in a wavelength range where PHB is generated depending on the characteristic of the optical amplifier 4, becomes higher than the power of the signal light having a wavelength out of the wavelength range.
    • 要解决的问题:提高根据光放大器的特性产生PHB(极化空穴燃烧)的波长范围的波长的信号光的OSNR。 光传输系统包括:用于将信号光发射到传输路径2的光发射机1; 用于接收来自传输路径2的信号光的光接收器3; 以及放置在传输路径2上用于放大信号光的一个或多个光放大器4。 控制光放大器4的增益特性,使得具有根据光放大器4的特性产生PHB的波长范围的波长的信号光的功率变得高于具有 波长超出波长范围。 版权所有(C)2012,JPO&INPIT