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对1550nm光纤光栅在应力作用下布喇格波长的偏萨特性进行了实验研究。当纵向拉伸应力加至367．6克时，得到了5．02nm的调谐范围。这可能是在相同应力作用下，目前所报道的最好结果。
The experimental study on the characteristics of Bragg wavelength of 1550 nm FBG under stress is carried out. When the longitudinal tensile stress was added to 367.6 grams, a tuning range of 5.02 nm was obtained. This is probably the best result reported so far under the same stress.