WPON Architecture using Model-Locked Laser with Nonlinear Dispersive Fiber WDM Light Source and Colorless ONU
AssigneeFuturewei Technologies, Inc.
InventorYuxin DAI
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Abstract
A passive optical network component comprising a model-locked laser, a dispersive nonlinear fiber coupled to the model-locked laser, and a modulator coupled to the dispersive nonlinear fiber, wherein the model-locked laser provides wavelengths for downstream modulations and enables upstream transmissions from a colorless optical network unit (ONU). Also disclosed is a colorless ONU comprising an optical circulator coupled to an incoming optical path and an outgoing optical path, and an optical injection-locking component coupled to the optical circulator, wherein the colorless ONU uses downstream optical signals from a model-locked laser as seed light to enable colorless upstream transmissions.
Claims20
A passive optical network component comprising:
- a model-locked laser;
- a dispersive nonlinear fiber coupled to the model-locked laser;
- and
- a modulator coupled to the dispersive nonlinear fiber,
- wherein the model-locked laser provides wavelengths for downstream modulations and enables upstream transmissions from a colorless optical network unit (ONU).
A colorless optical network unit (ONU) comprising:
- an optical circulator coupled to an incoming optical path and an outgoing optical path;
- and
- an optical injection-locking component coupled to the optical circulator,
- wherein the colorless ONU uses downstream optical signals from a model-locked laser as seed light to enable colorless upstream transmissions.
A method comprising:
- generating an optical pulse comprising a plurality of wavelengths using a model-locked laser;
- modulating the optical pulse at at least one of the wavelengths;
- and
- transmitting the modulated optical pulse to an optical component on an outgoing path, wherein the optical pulse induces injection-locking in the optical component for transmission to an incoming path.
Dependencies are inferred from the claim text.