Abstract
Various approaches has been tried to achieve simultaneous multiple-wavelength lasing by using both semiconductor and fiber gain media. Recently, an Er-doped fiber laser was demonstrated with four simultaneous wavelengths around 1600 nm by using a length of multimode fiber as a comb filter in a ring cavity.1 In this paper we report the use of two alternative in-fiber comb filters in a ring cavity producing a lasing comb of more than eight wavelengths around 1530 nm.
© 1995 Optical Society of America
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