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400G is coming, putting forward some new requirements
for optical fiber and cable.
Long-distance transmission of optical communication has the problems of signal attenuation and poor signal-to-noise ratio, and it is necessary to deploy fiber optic amplifiers and photoelectric conversion amplifiers
.
In the 40G era, the distance required for photoelectric conversion and amplification is 6000km; Reduced to 3000km in the 100G era; By the 400G era, if G.
652 optical fiber is used, it will only be 600~800km, which greatly increases the deployment cost of relay stations and increases the pressure
of network construction and maintenance of operators.
The G.
654 ultra-low loss optical fiber can extend the relay distance to 2000km, which shows that the use of new optical fiber is necessary
.
In the field of new optical fiber research and development, there are currently many technical directions, such as low-loss optical fiber, ultra-low-loss optical fiber, low-loss large-effective area optical fiber, ultra-low-loss large-effective area optical fiber and other technical paths
.
Each fiber has its own advantages, and ultra-low loss and large active area fiber will be the ultimate goal
of the industry in the long run.
However, from the price point of view, ultra-low loss optical fiber and ultra-low loss large effective area optical fiber products have low qualification rate and expensive price, while the price of low-loss large-effective area optical fiber is more acceptable to operators, and may become the first choice
in the transition stage.
Improving the yield and stability of products is the primary task
in the development of new optical fibers.
400G is coming, putting forward some new requirements
for optical fiber and cable.
Long-distance transmission of optical communication has the problems of signal attenuation and poor signal-to-noise ratio, and it is necessary to deploy fiber optic amplifiers and photoelectric conversion amplifiers
.
In the 40G era, the distance required for photoelectric conversion and amplification is 6000km; Reduced to 3000km in the 100G era; By the 400G era, if G.
652 optical fiber is used, it will only be 600~800km, which greatly increases the deployment cost of relay stations and increases the pressure
of network construction and maintenance of operators.
The G.
654 ultra-low loss optical fiber can extend the relay distance to 2000km, which shows that the use of new optical fiber is necessary
.
In the field of new optical fiber research and development, there are currently many technical directions, such as low-loss optical fiber, ultra-low-loss optical fiber, low-loss large-effective area optical fiber, ultra-low-loss large-effective area optical fiber and other technical paths
.
Each fiber has its own advantages, and ultra-low loss and large active area fiber will be the ultimate goal
of the industry in the long run.
However, from the price point of view, ultra-low loss optical fiber and ultra-low loss large effective area optical fiber products have low qualification rate and expensive price, while the price of low-loss large-effective area optical fiber is more acceptable to operators, and may become the first choice
in the transition stage.
Improving the yield and stability of products is the primary task
in the development of new optical fibers.
