从二氧化硅光纤的早期起,人们就理所当然的避免使用1383nm附近的传输波长。在这一波长下,光纤的衰减既高又不稳定。罪魁祸首是光纤制造过程中残留的潮气。当它们进入二氧化硅时,氢氧根离子中的氧原子和氢原子就在2.73μm处振动,并在此波长产生很大的吸收损耗。虽然2.73μm处于 From the earliest days of silica fiber, it was certainly natural to avoid using the transmission wavelength near 1383 nm. At this wavelength, the attenuation of the fiber is both high and unstable. The culprit is the residual moisture in the optical fiber manufacturing process. When they enter the silica, the oxygen and hydrogen atoms in the hydroxide ion vibrate at 2.73 μm, and a large absorption loss occurs at this wavelength. Although 2.73μm at