MULTIPLE WAVELENGTH GENERATION WITH BRILLOUIN ERBIUM FIBER LASERS/

Brillouin/erbium fiber lasers, which have recently been demonstrated, operate with a combination of brillouin gain and gain in erbium-doped fiber. In this letter, we describe techniques for cascading the brillo uin/erbium fiber laser to generate optical combs, and experimentally d emonstrate optical comb generation. Internal and external cascading te chniques are demonstrated, The line spacing in the combs is approximat ely 10 GHz, with operation in the 1550-nm region.