ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Design and Control of Gain-Flattened Erbium-Doped Fiber Amplifier for WDM Applications

  • Published : 1998.03.31
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Abstract

A simple experimental method to design gain-flattened erbium-doped fiber amplifier is proposed and demonstrated based on the two linear relations between the output power and the pump power, and between the gain and the length of the eribium-doped fiber at the gain flattened state. The spectral gain variation of the eribium-doped fiber amplifiber constructed by this method was less than 0.4 dB over 12 nm (1,545~1,557nm) wavelength region. The gain flatness is also controlled within 0.4 dB over the input power range of -30~-15dBm/ch through the feedback control utilizing the amplified spontaneous emission power in the 1,530 nm region.

Keywords

References

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