WAVELENGTH TUNABLE TRANSMITTER FOR TWDM-PON AND ONU

摘要

The invention relates to a wavelength tunable transmitter (100) for bandwidth symmetric TWDM-PON, comprising: multi-mode transmitter (110) for outputting an optical signal containing a plurality of longitudinal modes; optical circulator (120) including a first port for receiving the optical signal from the multi-mode, a second port for outputting the optical signal and a third port; and a first micro-ring resonator (130) including a first input for receiving the optical signal from the second port, a first output for outputting a first component of the resonant portion of the optical signal and a second output for outputting a second component of the resonant portion of the optical signal, wherein the second output is connected to the third port of the optical circulator (120).