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On October 23, China Telecom, ZTE, Changfei Fiber Optic Cable and Beijing University of Posts and Telecommunications jointly completed the 3,200-kilometer real-time online transmission experiment
of single-channel Tbit WDM system in Beijing.
The experiment was organized and implemented
by China Telecom Beijing Research Institute.
This is the industry's first real-time transmission experiment of single-channel T-bit ultra-long-distance WDM system, creating a world record
for real-time transmission of 3200 kilometers over a long-distance distance of a single-channel T-bit without a Raman amplifier on a G.
652 optical fiber with engineering margin.
With the growth of global broadband services, large bandwidth has become the most basic requirement of communication networks, and ultra-100G WDM systems have become a hot spot
for global operators and equipment vendors.
At the same time, China Telecom's backbone network optical fiber is facing upgrading, in order to fully verify the transmission performance of the ultra-100G transmission system on a variety of optical fibers, China Telecom joined hands with ZTE, Changfei Optical Fiber and Cable, Beijing University of Posts and Telecommunications, etc.
to carry out this experiment
.
for global operators and equipment vendors.
At the same time, China Telecom's backbone network optical fiber is facing upgrading, in order to fully verify the transmission performance of the ultra-100G transmission system on a variety of optical fibers, China Telecom joined hands with ZTE, Changfei Optical Fiber and Cable, Beijing University of Posts and Telecommunications, etc.
to carry out this experiment
.
This experiment is based on ZTE's advanced ultra-high-speed optical transmission system, using Nyquist WDM technology to form 10 120G subcarrier signals into super channels for combining and filtering, each subcarrier adopts PM-QPSK optical modulation and optical coherent reception technology, and integrates advanced ultra-high-speed data signal processing and soft decision error correction encoding and decoding technology, achieving 1.
2Tb/s transmission in the 300G spectrum, and the spectral efficiency reaches 4bit/Hz/s
。 This experiment achieves 24-hour error-free transmission of 3200 km without Raman amplifier on G.
652 optical fiber, which is the industry's largest real-time optical transmission system on G.
652 optical fiber, and provides the system margin required for practical engineering, realizing the perfect combination
of high spectral efficiency and large-capacity transmission.
Different from the previous offline system, this experiment completely simulates the real-time transmission
of practical applications.
In the experiment, four optical fibers, including G.
652D, G.
652D low-loss, large effective area G.
654D and Corning G.
652B ultra-low loss fiber, were used respectively, and the transmission performance of the ultra-100G system on different optical fibers was effectively verified and compared, which provided an important basis
for the selection of the next generation of new optical fibers of China Telecom.
2Tb/s transmission in the 300G spectrum, and the spectral efficiency reaches 4bit/Hz/s
。 This experiment achieves 24-hour error-free transmission of 3200 km without Raman amplifier on G.
652 optical fiber, which is the industry's largest real-time optical transmission system on G.
652 optical fiber, and provides the system margin required for practical engineering, realizing the perfect combination
of high spectral efficiency and large-capacity transmission.
Different from the previous offline system, this experiment completely simulates the real-time transmission
of practical applications.
In the experiment, four optical fibers, including G.
652D, G.
652D low-loss, large effective area G.
654D and Corning G.
652B ultra-low loss fiber, were used respectively, and the transmission performance of the ultra-100G system on different optical fibers was effectively verified and compared, which provided an important basis
for the selection of the next generation of new optical fibers of China Telecom.
On October 23, China Telecom, ZTE, Changfei Fiber Optic Cable and Beijing University of Posts and Telecommunications jointly completed the 3,200-kilometer real-time online transmission experiment
of single-channel Tbit WDM system in Beijing.
The experiment was organized and implemented
by China Telecom Beijing Research Institute.
This is the industry's first real-time transmission experiment of single-channel T-bit ultra-long-distance WDM system, creating a world record
for real-time transmission of 3200 kilometers over a long-distance distance of a single-channel T-bit without a Raman amplifier on a G.
652 optical fiber with engineering margin.
With the growth of global broadband services, large bandwidth has become the most basic requirement of communication networks, and ultra-100G WDM systems have become a hot spot
for global operators and equipment vendors.
At the same time, China Telecom's backbone network optical fiber is facing upgrading, in order to fully verify the transmission performance of the ultra-100G transmission system on a variety of optical fibers, China Telecom joined hands with ZTE, Changfei Optical Fiber and Cable, Beijing University of Posts and Telecommunications, etc.
to carry out this experiment
.
for global operators and equipment vendors.
At the same time, China Telecom's backbone network optical fiber is facing upgrading, in order to fully verify the transmission performance of the ultra-100G transmission system on a variety of optical fibers, China Telecom joined hands with ZTE, Changfei Optical Fiber and Cable, Beijing University of Posts and Telecommunications, etc.
to carry out this experiment
.
This experiment is based on ZTE's advanced ultra-high-speed optical transmission system, using Nyquist WDM technology to form 10 120G subcarrier signals into super channels for combining and filtering, each subcarrier adopts PM-QPSK optical modulation and optical coherent reception technology, and integrates advanced ultra-high-speed data signal processing and soft decision error correction encoding and decoding technology, achieving 1.
2Tb/s transmission in the 300G spectrum, and the spectral efficiency reaches 4bit/Hz/s
。 This experiment achieves 24-hour error-free transmission of 3200 km without Raman amplifier on G.
652 optical fiber, which is the industry's largest real-time optical transmission system on G.
652 optical fiber, and provides the system margin required for practical engineering, realizing the perfect combination
of high spectral efficiency and large-capacity transmission.
Different from the previous offline system, this experiment completely simulates the real-time transmission
of practical applications.
In the experiment, four optical fibers, including G.
652D, G.
652D low-loss, large effective area G.
654D and Corning G.
652B ultra-low loss fiber, were used respectively, and the transmission performance of the ultra-100G system on different optical fibers was effectively verified and compared, which provided an important basis
for the selection of the next generation of new optical fibers of China Telecom.
2Tb/s transmission in the 300G spectrum, and the spectral efficiency reaches 4bit/Hz/s
。 This experiment achieves 24-hour error-free transmission of 3200 km without Raman amplifier on G.
652 optical fiber, which is the industry's largest real-time optical transmission system on G.
652 optical fiber, and provides the system margin required for practical engineering, realizing the perfect combination
of high spectral efficiency and large-capacity transmission.
Different from the previous offline system, this experiment completely simulates the real-time transmission
of practical applications.
In the experiment, four optical fibers, including G.
652D, G.
652D low-loss, large effective area G.
654D and Corning G.
652B ultra-low loss fiber, were used respectively, and the transmission performance of the ultra-100G system on different optical fibers was effectively verified and compared, which provided an important basis
for the selection of the next generation of new optical fibers of China Telecom.
