[1] WYSOCKI P F,DIGONNET M J F,KIM B Y et al. Characteristics of erbium-doped superfluorescent fiber sources for interferometric sensor applications [J].IEEE Journal of Lightwave Technology,1994,12(3):550～567.

[2] MORKEL P R,LAMING R I,PAYNE D N. Noise characteristics of high-power doped-fiber superluminescent sources [J].Electron Lett,1990,26(2):96～97.

[3] TAYLOR H. Intensity noise and spontaneous emission coupling in superluminescent light sources [J].IEEE J Q E,1990,26(1):94～97.

[4] HEE G P,DIGONNET M,GORDON K. Er-doped superfluorescent fiber source with a 0.5-ppm long-term mean-wavelength stability [J].IEEE Journal of Lightwave Technology,2003,21(12):3427～3433.

[5] SUN Y,SULHOFF J W,SRIVASTAVA A K.80nm ultra-wideband erbium-doped silica fiber amplifier [J].Electron Lett,1997,33(23):1965～1967.

[6] GRAY S,MINELLI J D,GRUDININ A B et al. l watt Er/Yb singlemode superfluorescent optical fiber source [J].Electron Lett,1997,33(16):1382～1383.

[7] DOMINIQUE M. Wavelength stability characteristics of a high-power,amplified superfluorescent source [J].IEEE Journal of Lightwave Technology,1999,17(8):1415～1422.

[8] DELAVAUX J M P. Integrated optics Erbium-Ytterbium amplifier system in 10Gb/s fiber transmission experiment [J].IEEE Photonics Technology Letters,1997,9(2):247～249.

[9] XIA G J,DUAN J H,ZHAO S H et al. Study on the double cladding Er³⁺/Yb³⁺ fiber amplifier with reflector [J].Laser Technology,2004,28(1):12～15(in Chinese).

[10] TOWNSEND J B. Yb³⁺ sensitized Er³⁺ doped silica optical fiber with ultrahigh transfer efficiency and gain [J].Electron Lett,1991,27(21):1958～1959.

[11] DIGONNET M J F. Theory of superfluorescent fiber lasers [J].IEEE Journal of Lightwave Technology,1986,LT-4(11):1631～1639.

[12] WYSOCKI P F,DIGONNET M J F,KIM B Y et al. Wavelength stability of a high-output,broadband,Er-doped superfluorescent fiber source pumped near 980nm [J].Opt Lett,1991,16(12):961～963.