A novel configuration of the tunable fiber laser with uniform wavelength spacing in dense wavelength division multiplexing (DWDM) application is proposed. The ring type tunable fiber laser consists of an all-fiber comb filter which determines the wavelength spacing, and a piece of adjustable fiber grating to select the discrete lasing wavelength for DWDM application. The proposed all-fiber ring type tunable laser has potential application in the DWDM and other optical systems due to its advantages such as narrow linewidth, easy tuning, uniform wavelength interval, etc..
© 2007 Chinese Optics Letters
Xiaopeng Dong and Yong Chen, "Novel discretely tunable narrow linewidth fiber laser with uniform wavelength spacing," Chin. Opt. Lett. 5, 218-220 (2007)