Active Gain-Slope Compensation of EDFA Using Thulium-Doped Fiber as Saturable Absorber

Tomoharu KITABAYASHI; Takuya AIZAWA; Tetsuya SAKAI; Akira WADA

Active Gain-Slope Compensation of EDFA Using Thulium-Doped Fiber as Saturable Absorber

Tomoharu KITABAYASHI, Takuya AIZAWA, Tetsuya SAKAI, Akira WADA

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In erbium doped optical fiber amplifiers (EDFAs) used in modern high-capacity wavelength division multiplexing (WDM) systems, the gain flatness of EDFA is very important in wide-band long-haul systems. In the EDFAs using the passive gain equalizers, the gain flatness deteriorates due to gain-tilt when the operating condition of the EDFA changes, while the EDFAs should maintain the gain flatness even if the operating condition has changed. To solve this problem, we have developed an active gain-slope compensation technique of an EDFA using a thulium-doped optical fiber (TDF) as a saturable absorber. The actively gain-slope compensated EDFA with the TDF compensator keeps the gain profile constant for the wide gain dynamic range more than 8 dB with the low noise figure less than 6 dB in the wavelength range of 1539-1564 nm.

Publication: IEICE TRANSACTIONS on Communications Vol.E84-B No.5 pp.1231-1235

Publication Date: 2001/05/01

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Type of Manuscript: Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)

Category: Optical Fibers and Cables

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Tomoharu KITABAYASHI, Takuya AIZAWA, Tetsuya SAKAI, Akira WADA, "Active Gain-Slope Compensation of EDFA Using Thulium-Doped Fiber as Saturable Absorber" in IEICE TRANSACTIONS on Communications, vol. E84-B, no. 5, pp. 1231-1235, May 2001, doi: .
Abstract: In erbium doped optical fiber amplifiers (EDFAs) used in modern high-capacity wavelength division multiplexing (WDM) systems, the gain flatness of EDFA is very important in wide-band long-haul systems. In the EDFAs using the passive gain equalizers, the gain flatness deteriorates due to gain-tilt when the operating condition of the EDFA changes, while the EDFAs should maintain the gain flatness even if the operating condition has changed. To solve this problem, we have developed an active gain-slope compensation technique of an EDFA using a thulium-doped optical fiber (TDF) as a saturable absorber. The actively gain-slope compensated EDFA with the TDF compensator keeps the gain profile constant for the wide gain dynamic range more than 8 dB with the low noise figure less than 6 dB in the wavelength range of 1539-1564 nm.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_5_1231/_p

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@ARTICLE{e84-b_5_1231,
author={Tomoharu KITABAYASHI, Takuya AIZAWA, Tetsuya SAKAI, Akira WADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Active Gain-Slope Compensation of EDFA Using Thulium-Doped Fiber as Saturable Absorber},
year={2001},
volume={E84-B},
number={5},
pages={1231-1235},
abstract={In erbium doped optical fiber amplifiers (EDFAs) used in modern high-capacity wavelength division multiplexing (WDM) systems, the gain flatness of EDFA is very important in wide-band long-haul systems. In the EDFAs using the passive gain equalizers, the gain flatness deteriorates due to gain-tilt when the operating condition of the EDFA changes, while the EDFAs should maintain the gain flatness even if the operating condition has changed. To solve this problem, we have developed an active gain-slope compensation technique of an EDFA using a thulium-doped optical fiber (TDF) as a saturable absorber. The actively gain-slope compensated EDFA with the TDF compensator keeps the gain profile constant for the wide gain dynamic range more than 8 dB with the low noise figure less than 6 dB in the wavelength range of 1539-1564 nm.},
keywords={},
doi={},
ISSN={},
month={May},}

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TY - JOUR
TI - Active Gain-Slope Compensation of EDFA Using Thulium-Doped Fiber as Saturable Absorber
T2 - IEICE TRANSACTIONS on Communications
SP - 1231
EP - 1235
AU - Tomoharu KITABAYASHI
AU - Takuya AIZAWA
AU - Tetsuya SAKAI
AU - Akira WADA
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2001
AB - In erbium doped optical fiber amplifiers (EDFAs) used in modern high-capacity wavelength division multiplexing (WDM) systems, the gain flatness of EDFA is very important in wide-band long-haul systems. In the EDFAs using the passive gain equalizers, the gain flatness deteriorates due to gain-tilt when the operating condition of the EDFA changes, while the EDFAs should maintain the gain flatness even if the operating condition has changed. To solve this problem, we have developed an active gain-slope compensation technique of an EDFA using a thulium-doped optical fiber (TDF) as a saturable absorber. The actively gain-slope compensated EDFA with the TDF compensator keeps the gain profile constant for the wide gain dynamic range more than 8 dB with the low noise figure less than 6 dB in the wavelength range of 1539-1564 nm.
ER -