Grating compensation of third-order fiber dispersion
Grating compensation of third-order fiber dispersion
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DOI：
10.1109/3.166468
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发表时间：
1992-12
影响因子：
2.5
通讯作者：
M. Stern;E. Chase
中科院分区：
文献类型：
--
作者：
M. Stern;E. Chase
在单模光纤中传输的亚皮秒光脉冲即使在光纤的零色散波长（λ/sub 0/）处也会被三阶色散严重扭曲。使用互相关技术，作者测量了100飞秒脉冲通过400米的光纤附近的λ/sub 0/后，扩大到超过5 ps。测量的非对称和振荡脉冲形状与计算结果一致。光栅和望远镜装置被配置为同时均衡三阶和二阶色散的波长略长于λ/sub 0/。对于波长为1560-1580 nm的光纤长度为400 m和3 km的色散位移光纤，已经证明了几乎完全的补偿。对于较长的光纤，由于光栅的四阶色散变得重要。>
Subpicosecond optical pulses propagating in single-mode fibers are severely distorted by third-order dispersion even at the fiber's zero-dispersion wavelength ( lambda /sub 0/). Using cross-correlation techniques, the authors measured the broadening of a 100-fs pulse to more than 5 ps after passing through 400 m of fiber near lambda /sub 0/. The measured asymmetric and oscillatory pulse shape is in agreement with calculations. A grating and telescope apparatus was configured to simultaneously equalize both third- and second-order dispersion for wavelengths slightly longer than lambda /sub 0/. Nearly complete compensation has been demonstrated for fiber lengths of 400 m and 3 km of dispersion-shifted fiber at wavelengths of 1560-1580 nm. For the longer fibers, fourth-order dispersion due to the grating becomes important. >