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采用新颖的调谐方式，实现了可调谐光纤光栅（ＦｉｂｅｒＢｒａｇｇＧｒａｔｉｎｇ，ＦＢＧ）环形腔激光器的运转，得到了稳定的可调谐、窄线宽激光输出，调谐范围为５．７ｎｍ，线宽小于０．１ｎｍ。
A novel tuning method is adopted to realize the operation of a tunable fiber grating (FBG) ring cavity laser. A stable tunable and narrow linewidth laser output is achieved with a tuning range of 5.7nm and a linewidth of less than 0.1nm.