Limiting-amplified multiwavelength dispersion compensator incorporating chirped fiber gratings and optical amplifier for DWDM systems

An optical limiting-amplified multiwavelength dispersion compensator (LDC), incorporating multiple chirped fiber gratings and a common bidirectional e rbium-doped fiber amplifier, for dense wavelength-division-multiplexing (DW DM) systems is proposed and demonstrated. The LDC provides simultaneous dis persion compensation and limiting amplification of multiple DWDM signals. i i high constant channel output power of 16.4 dBm and a low power penalty of less than 0.3 dB over an input signal dynamic range of -17 to 0 dBm can be obtained for this LDC in a 10 Gb/s two-wavelength 80-km conventional singl e-mode fiber system. The LDC may facilitate easier DWDM system design flexi bility and network implementation. (C) 1999 Published by Elsevier Science B .V. All rights reserved.