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Liu, H.L.; Tam, H.Y.; Chung, W.H.; Wai, P.K.A.; Sugimoto, N.
IEEE photonics technology letters, 02/2005, Letnik: 17, Številka: 2Journal Article
Ultrawide-band tunable fiber ring lasers using 84.6-cm-long lanthanum-codoped bismuth-based erbium doped fiber and a narrow-band tunable microelectromechanical system filter are reported. The fiber ring lasers can be continuously tuned from 1520 to 1626 nm, covering both the C- and L-bands. The laser has two outputs; the high output power port exhibits better than 35-dB wavelength extinction ratio, and the second output has much lower power but exhibits a large extinction ratio of better than 60 dB.
