Characterization of lasing-oscillation direction in optical gain-clamped erbium-doped fiber amplifiers |
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| Authors: | MA Mahdi FR Mahamd Adikan T Subramaniam H Ahmad |
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| Institution: | aDepartment of Computer and Communication Systems Engineering, Faculty of Engineering, Photonics and Fiber Optic Systems Laboratory, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;bDepartment of Electrical Engineering, Faculty of Engineering, University of Malaya 50603 Kuala Lumpur, Malaysia;cDepartment of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia |
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| Abstract: | In this paper, the effect of ring-laser propagating direction in gain-clamped erbium-doped fiber amplifiers is investigated. The optical amplifier architecture under study is based on ring-laser cavity. The strongest gain-clamping effect is obtained for bi-traveling ring-laser in the optical amplifier. On the other hand, the low-noise figure operation can be achieved by allowing the ring-laser to co-travel with the signal propagation. |
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| Keywords: | Erbium Optical amplifier Gain clamped Ring laser |
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