Wavelength selection and configuration method for multi-wavelength optical communication system
AssigneeElectronics and Telecommunications Research Institute
InventorsDong-Soo LEE, Sung-Chang KIM, Geun-Yong KIM, Hark YOO, Young-Suk LEE
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Abstract
Provided is an OLT including a wavelength splitter that splits all upstream optical signals with different wavelengths received from at least one ONU according to wavelength, at least one receiver that receive the optical signals split by the wavelength splitter according to wavelength, a wavelength selector that allocates an upstream transmission wavelength of the at least one ONU, and a transmitter that transmits wavelength allocation information allocated by the wavelength selector to the at least one ONU.
Claims20
An Optical Line Termination (OLT), comprising:
- a wavelength splitter configured to split all upstream optical signals with different wavelengths received from at least one Optical Network Unit (ONU) according to wavelength;
- at least one receiver configured to receive the optical signals split by the wavelength splitter according to wavelength;
- a wavelength selector configured to allocate an upstream transmission wavelength of the at least one ONU;
- and
- a transmitter configured to transmit wavelength allocation information allocated by the wavelength selector to the at least one ONU.
An Optical Network Unit (ONU), comprising:
- a receiver configured to receive upstream transmission wavelength allocation information from an Optical Line Termination (OLT);
- a wavelength setting unit configured to set an upstream transmission wavelength of a transmitter to a wavelength included in the upstream transmission wavelength allocation information received by the receiver;
- and
- a transmitter configured to transmit data through the upstream transmission wavelength set by the wavelength setting unit.
A method of allocating an upstream transmission wavelength of at least one ONU in an OLT, the method comprising:
- selecting a wavelength to be allocated to the at least one ONU;
- transmitting wavelength allocation information through an optical fiber to the at least one ONU;
- splitting upstream optical signals received through an optical fiber from the at least one ONU into optical signals according to wavelength;
- and
- receiving the plurality of signals split according to wavelength.
A method of setting an upstream transmission wavelength in an ONU, the method comprising:
- receiving upstream transmission wavelength allocation information from an OLT;
- setting an upstream transmission wavelength to a wavelength included in the received upstream transmission wavelength allocation information;
- and
- transmitting data through the set upstream transmission wavelength.
Dependencies are inferred from the claim text.