Gain-flattened broadband Er3+-doped silica fibre amplifier with low noise characteristics

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Gain-flattened broadband Er3+-doped silica fibre amplifier with low noise characteristics

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The authors have developed a broadband silica-based EDFA with a wide flat amplification bandwidth of 66 nm, an average gain of 17 dB and a low noise figure of < 5 dB, by employing a hybrid configuration and a gain equaliser.

Inspec keywords: fibre lasers; erbium; silicon compounds; laser noise

Other keywords: flat amplification bandwidth; hybrid configuration; gain equaliser; average gain; 17 dB; gain-flattened fibre amplifier; EDFA; low noise characteristics; SiO2:Er

Subjects: Design of specific laser systems; Fibre lasers and amplifiers; Fibre lasers and amplifiers

References

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      • Sun, Y., Sulhoff, J.W., Srivastava, A.K., Zyskind, J.L., Wolf, C.: `An 80 nm ultra band EDFA with low noise figure and high output power', PD, ECOC' 97, 1997, p. 69–72.
    2. 2)
      • Yamada, M., Mori, A., Kobayashi, K., Ono, H., Kanamori, T., Oikawa, K., Nishida, Y., Ohishi, Y.: `Gain-flattened tellurite-based EDFA with a flat amplification bandwidthof 76 nm', PD1, OFC'97, 1997.
    3. 3)
      • Mori, A., Ohishi, Y., Yamada, M., Ono, H., Nishida, Y., Oikawa, K., Sudo, S.: `1.5 µm broadband amplification by tellurite-based EDFAs', PD1, OFC' 97, 1997.
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      • M. Yamada , H. Ono , Y. Ohishi . Low-noise and broadband Er3+-doped silica fibre amplifiers. Electron. Lett.
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      • Wysocki, P.F., Judkins, J., Espindola, R., Andrejco, M., Vengsarkar, A., Walker, K.: `Erbium-doped fiber amplifier flattened beyond 40 nm using long-periodgrating', PD2, OFC'97, 1997.
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      • M. Yamada , T. Kanamori , Y. Terunuma , K. Oikawa , M. Shimizu , K. Sagawa , S. Sudo . Fluoride-based erbium-doped fiber amplifier with inherently flat gainspectrum. IEEE Photonics Technol. Lett. , 882 - 884
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      • M. Yamada , H. Ono , T. Kanamori , T. Sakamoto , Y. Onishi , S. Sudo . A low-noise and gain-flattened amplifier composed of asilica-based and a fluoride-based Er3+-doped fiber amplifier in acascade configuration. IEEE Photonics Technol. Lett. , 620 - 622
    8. 8)
      • M. Yamada , H. Ono , T. Kanamori , S. Sudo , Y. Ohishi . Broadband and gain-flattened amplifier composed of a 1.55 µm bandand a 1.58 µm band Er3+-dopedfibre amplifier in a parallel configuration. Electron. Lett. , 710 - 711
    9. 9)
      • D. Bayart , B. Clesca , L. Hamon , J.L. Beylat . Experimental investigation of the gain flatness characteristics for 1.55µm erbium-doped fluoride fiber amplifiers. IEEE Photonics Technol. Lett. , 613 - 615
    10. 10)
      • Yamada, M., Ono, H., Mori, A., Kanamori, K., Sudo, S., Ohishi, Y.: `Ultra-broadband and gain-flattened EDFAs for WDM signals', MB1, OAA'97, 1997.
    11. 11)
      • Masuda, H., Kawai, S., Suzuki, K., Aida, K.: `75-nm 3-dB gain-band optical amplification with erbium-doped fluoridefiber amplifiers and distributed Ramanamplifiers in 9 × 2.5-Gb/s WDM transmission experiment', PD, ECOC'97, 1997, p. 73–76.
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