Cohen L G, Lin C
Appl Opt. 1977 Dec 1;16(12):3136-9. doi: 10.1364/AO.16.003136.
Subnanosecond pulses in the 1120-1550-nm region are generated by multiple-order stimulated Raman scattering in a small core single-mode silica fiber pumped by a Q-switched and mode-locked Nd:YAG laser at 1064 nm. These near ir pulses are injected into various km long test fibers, and relative time delay changes between different wavelengths are used to determine dispersion in a region where fiber material dispersion is small. Zero material dispersion has been observed in germanium and boron-doped single-mode and multimode est fibers.
在1120 - 1550纳米区域的亚纳秒脉冲是由调Q锁模1064纳米的Nd:YAG激光泵浦的小芯单模石英光纤中的多阶受激拉曼散射产生的。这些近红外脉冲被注入到各种长达数千米的测试光纤中，不同波长之间的相对时间延迟变化被用于确定光纤材料色散较小区域的色散情况。在掺锗和掺硼的单模和多模测试光纤中观察到了零材料色散。
