Optical combiner energy harvesting
First Claim
1. A splitter/combiner unit for signaling to an optical network unit in an absence of optical beat interference (OBI), the splitter/combiner unit comprising:
- a first input for receiving downstream light;
a second input for receiving upstream light from at least one ONU; and
at least one output for providing the downstream light in response to upstream light received from the at least one ONU,wherein the splitter/combiner unit is configured to signal the received downstream light across an active downstream channel to the at least one ONU for causing an adjustment to the wavelength over which the ONU communicates with the splitter/combiner unit, wherein the ONU is responsive to the signaling for adjusting said wavelength.
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Accused Products
Abstract
Powering an active/splitter and providing information to ONUs to cause adjustments to ONU operating wavelengths. An ONU may identify the port of a splitter to which the ONU is connected in order to make wavelength adjustments. Various techniques enable the ONU to identify from which port the ONU is receiving signals, such as a splitter that splits signals to ONUs in a cable network and signals to one or more ONUs the port to which it is connected. The splitter may lack electrical power and may perform the signal function by harvesting optical power from optical power provided to the splitter. In this manner, an active splitter may behave passively with respect to powering components in the absence of electrical power.
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Citations
22 Claims
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1. A splitter/combiner unit for signaling to an optical network unit in an absence of optical beat interference (OBI), the splitter/combiner unit comprising:
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a first input for receiving downstream light; a second input for receiving upstream light from at least one ONU; and at least one output for providing the downstream light in response to upstream light received from the at least one ONU, wherein the splitter/combiner unit is configured to signal the received downstream light across an active downstream channel to the at least one ONU for causing an adjustment to the wavelength over which the ONU communicates with the splitter/combiner unit, wherein the ONU is responsive to the signaling for adjusting said wavelength. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for managing wavelength, the system comprising:
- a splitter/combiner unit for providing downstream signals in response to upstream signals received from at least one optical network unit (ONU), wherein the splitter/combiner unit signals the downstream signals across an active downstream channel to the at least one ONU for causing an adjustment to the wavelength over which the ONU communicates with the splitter/combiner unit, wherein the ONU is responsive to the signaling for adjusting said wavelength;
at least one optical network unit for adjusting a wavelength operating with the splitter/combiner unit in an absence of optical beat interference (OBI), the optical network unit for receiving the downstream signal from the splitter/combiner unit, the downstream signal identifying at least one of a port over which the ONU is communicating with the splitter or a wavelength at which another ONU is operating; and
a processor for generating an ONU wavelength, wherein the wavelength is adjustable responsive to the downstream signal from the splitter/combiner unit.
- a splitter/combiner unit for providing downstream signals in response to upstream signals received from at least one optical network unit (ONU), wherein the splitter/combiner unit signals the downstream signals across an active downstream channel to the at least one ONU for causing an adjustment to the wavelength over which the ONU communicates with the splitter/combiner unit, wherein the ONU is responsive to the signaling for adjusting said wavelength;
Specification