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Gain-clamped erbium-doped fiber-ring lasing amplifier with low noise figure by using an interleaver

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5 Author(s)
Yi, L.L. ; Nat. Lab. on Fiber Opt. Commun. Networks & Adv. Opt. Commun. Syst., Shanghai Jiao Tong Univ., China ; Zhan, L. ; Ye, Q.H. ; Hu, X.
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A novel all-optical gain-clamped erbium-doped fiber-ring lasing amplifier (GC-EDFRLA) has been demonstrated, in which the odd port of a 100/200-G interleaver was used to form a fiber-ring cavity to produce lasing oscillation for locking the gain and its even port was employed to export the amplified signals. In such a way, the problem existing in the conventional GC-EDFRLA is solved. The signal can be exported separately without the lasing power while the noise figure (NF) is very low. Finally, the GC-EDFRLA with a low NF of 4.2 dB was achieved.

Published in:

Photonics Technology Letters, IEEE  (Volume:15 ,  Issue: 12 )