Title :
Gain-clamped erbium-doped fiber-ring lasing amplifier with low noise figure by using an interleaver
Author :
Yi, L.L. ; Zhan, L. ; Ye, Q.H. ; Hu, X. ; Xia, Y.X.
Author_Institution :
Nat. Lab. on Fiber Opt. Commun. Networks & Adv. Opt. Commun. Syst., Shanghai Jiao Tong Univ., China
Abstract :
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.
Keywords :
erbium; optical fibre amplifiers; ring lasers; wavelength division multiplexing; amplified signals; even port; gain-clamped erbium-doped fiber-ring lasing amplifier; interleaver; low noise figure; Clamps; Erbium-doped fiber amplifier; Fiber nonlinear optics; Low-noise amplifiers; Noise figure; Noise measurement; Optical feedback; Optical fiber amplifiers; Optical pumping; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.819714
