Gain-Flattened Optical Limiting Amplifier Modules for Wavelength Division Multiplexing Transmission

Author: Liaw Shien-Kuei   Chi Sien  

Publisher: Taylor & Francis Ltd

ISSN: 1096-4681

Source: Fiber And Integrated Optics, Vol.18, Iss.2, 1999-04, pp. : 69-77

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Abstract

By integration of a bidirectional erbium-doped fiber amplifier and a three-port optical circulator with several fiber Bragg gratings (FBGs), two gain-flattened optical limiting amplifier (OLA) modules are proposed and experimentally demonstrated. They rely on the use of central wavelength misalignment and bending loss methods, respectively. They can effectively cover the whole useful 1.55-mum band. Both modules can provide gain-flattening characteristics over a large input dynamic range. The FBGs integrated OLA configuration has potential application in wavelength division multiplexing lightwave communication systems.