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Measuring gain and noise figure of erbium-doped fiber amplifiers using a broad-band source and a transmission filter

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2 Author(s)
Gupta, S. ; Dept. of Electr. & Comput. Eng., Univ. of Toronto, Ont., Canada ; Li Qian

We report a unique low-cost technique for measuring gain and noise figure (NF) in erbium-doped fiber amplifiers using a broad-band amplified spontaneous emission source and a transmission filter, by extracting the slope and intercept of output power spectral density versus input power spectral density at filter edges. The required filter depth is 30 dB. Discrepancies of ≤0.3 dB are found between gain or NF obtained from this technique and those measured using conventional spectral-interpolation technique employing multiple lasers at 100-GHz spacing across the C-band.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 9 )

Date of Publication:

Sept. 2004

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