- DENSE WAVELENGTH DIVISION MULTIPLEXING-PASSIVE OPTICAL NETWORK USING SELF-INJECTION LOCKING OF FABRY-PEROT LASER DIODE

摘要

PURPOSE: A DWDM-PON(Dense Wavelength Division Multiplexing-Passive Optical Network) system using a self injection locking function of a Fabry-Perot laser diode is provided to feed back an optical signal portion of a wavelength outputted through a partial mirror, and to injection-lock an output wavelength of a Fabry-Perot laser diode with an optical signal of the outputted wavelength, thereby applying the Fabry-Perot laser diode to the DWDM-PON system. CONSTITUTION: A central office(100) generates the first optical signals with different wavelengths, transmits the signals to a remote node(200), and receives the second optical signals with different wavelengths from the remote node(200). The remote node(200) demultiplexes the first optical signals, transmits the signals to an ONU(Optical Network Unit)(300), or multiplexes the second optical signals, and transmits the signals to the central office(100). The ONU(300) receives the first optical signals, generates the second optical signals, and transmits the optical signals to the remote node(200). A portion of the first optical signals is fed back, and is injected into the first transmitter(110) of the central office(100). A portion of the second optical signals is fed back, and is injected into the second transmitter(310) of the ONU(300).