Abstract
We theoretically investigate the design of an optical limiting-amplified multiwavelength dispersion compensator (LDC) incorporating multiple chirped fiber gratings (CFGs) and a common bidirectional erbium-doped fiber (EDF) amplifier. The LDC provides simultaneous dispersion compensation and limiting amplification of multiple dense wavelength division multiplexing (DWDM) signals. The design criteria for multiwavelength LDC are to provide high constant channel output power and low interchannel differential power by optimization of the EDF length. The influence of the CFG's rejection ratio on the LDC is addressed. The dynamic range and maximum channel number of the LDC are studied. The multiwavelength LDC may facilitate easier DWDM system design flexibility and network implementation.
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