BIDIRECTIONAL ADD/DROP OPTICAL AMPLIFIER MODULE USING ONE ARRAYED-WAVEGUIDE GRATING MULTIPLEXER

摘要

PURPOSE: A bidirectional add/drop optical amplifier module using one arrayed-waveguide grating multiplexer is provided to embody an economic and efficient optical communication network by using only one NxN arrayed-waveguide grating multiplexer. CONSTITUTION: One NxN arrayed-waveguide grating multiplexer(20) simultaneously demultiplexes and multiplexes a wavelength division multiplexed signal bidirectionally progressed. Two 3-terminal circulators separate the path of the wavelength division multiplexed signals, and input signals progressed in inter-different directions to both sides of the NxN arrayed-waveguide grating multiplexer(20) through one optical fiber. A bidirectional optical amplifier(10) compensates the loss of an optical signal bidirectionally progressed.