利用可编程控制装置对光纤光栅的中心波长进行了线性调谐，在此基础上实现了可控波长行波环形腔激光器的运转，波长线性调谐范围可达 5.9nm。通过精确控制，波长选择的复现性可达 5.13×10^-3nm，在检测仪器的精度范围内，波长调谐的线性度达 R²= 0.999，波长选择间限为 0.156nm。

A programmable wavelength selective and scanning structure was used to tune the central wavelength of a fiber Bragg grating linearly. On this basis, an all-fiber traveling-wave ring laser was fabricated. The output wavelength can be selected with a computer and can be continuously scanned in a range of 5.9 nm. The linearity is up to R²=0.999, the wavelength-interval is 0.156 nm, and the wavelength reproducibility is 5.13 ×10^-3 nm, which is within the measuring limit of the optical spectrum analyzer.