Patent ID: 6330089
Filing Date: 2001-12-11
Classification: H04B,H04J

Abstract:
An optical time-division multiplexing transmitter module includingan optical circulator having an input/output port and an output port,an optical coupler positioned to receive and split into two split signals a pulse beam signal output from the input/output port of the circulator,first and second double-pass electro-absorption (DPEA) modulators positioned respectively to receive and modulate one and the other of the two split signals, and reflect the modulated signals back to the coupler so that the coupler multiplexes the reflected signals and directs the multiplexed signals to the input/output port of the circulator, the circulator guiding the multiplexed signal received through the input/output port to the output port so as to exit the circulator; andan optical delay circuit positioned in the path of one of the two split signals so as to delay the one of the two split signals relative to the other of the two split signal.