Optical communication method, apparatus, and system
OwnerGuangcan Mi, Xiang Liuinventors
Life of this patent
Estimating the term…
Abstract
Methods, apparatuses, and systems are provided. A method includes obtaining a wavelength division multiplexing optical signal. The wavelength division multiplexing optical signal includes N pairs of optical signals. Each pair of optical signals includes a first optical signal and a second optical signal that are of different wavelengths and whose polarizations are orthogonal to each other. N is an integer greater than 1, and a frequency of at least one of N first optical signals and a frequency of at least one of N second optical signals are within a zero-dispersion frequency ZDF region of an optical fiber. The method further includes sending the wavelength division multiplexing optical signal through the optical fiber.
Claims21
1-20. (canceled)
A method, comprising:
- obtaining a wavelength division multiplexing optical signal, wherein the wavelength division multiplexing optical signal comprises N pairs of optical signals, each pair of optical signals comprises a first optical signal and a second optical signal that are of different wavelengths and wherein the first optical signal and the second optical signal each have a polarization that are orthogonal to each other, N is an integer greater than 1, and a frequency of at least one of N first optical signals and a frequency of at least one of N second optical signals are within a zero-dispersion frequency (ZDF) region of an optical fiber;
- and
- sending the wavelength division multiplexing optical signal through the optical fiber.
An apparatus, comprising:
- N polarization-division multiplexers (PDMs) and a wavelength division multiplexer, wherein the N PDMs are configured to:
- perform beam combination on N pairs of optical signals, to obtain N beam-combined optical signals, wherein N is an integer greater than 1, the N pairs of optical signals are in one-to-one correspondence with the N PDMs, each of the N beam-combined optical signals comprises a first optical signal and a second optical signal that are of different wavelengths and wherein the first optical signal and the second optical signal each have a polarization that are orthogonal to each other, and a frequency of at least one of N first optical signals and a frequency of at least one of N second optical signals are within a zero-dispersion frequency (ZDF) region of an optical fiber;
- and
- wherein the wavelength division multiplexer is configured to:
- perform beam combination on the N beam-combined optical signals, to obtain a wavelength division multiplexing optical signal, and
- transmit the wavelength division multiplexing optical signal through the optical fiber.
A system, comprising a transmit end and a receive end, wherein the transmit end is connected to the receive end through an optical fiber;
- and
- the transmit end is configured to:
- transmit a wavelength division multiplexing optical signal to the receive end through the optical fiber, wherein the wavelength division multiplexing optical signal comprises N pairs of optical signals, each pair of optical signals comprises a first optical signal and a second optical signal that are of different wavelengths and wherein the first optical signal and the second optical signal each have a polarization that are orthogonal to each other, N is an integer greater than 1, and a frequency of at least one of N first optical signals and a frequency of at least one of N second optical signals are within a zero-dispersion frequency (ZDF) region of the optical fiber.
Dependencies are inferred from the claim text.