In recent years, with the continuous growth of data traffic, the traditional bearer network data transmission and bandwidth pressure is increasing, the backbone network transmission rate will continue to upgrade from 100G to 200G/400G and other higher rates.

Optical frequency domain reflectometer (OFDR), which can be applied to various ranges of high-precision measurements and has a large dynamic range, has attracted the interest of researchers.

Fiber optic shape sensing technology is another new research direction in the field of fiber optic sensing in recent years, except for a few foreign products in commercial applications, there are no mature products in China for the time being, but many universities and research institutions in China have been involved in the field of fiber optic shape sensing.

It is a general term for optical fibers with special functions other than conventional communication fibers, which are usually made of special materials and are used in a specific wavelength range.

Does your PON network have "red bumps"?
Operator A's low light remediation requirements:
It is stipulated that the ONU receiving optical power ≥ -25dBm is the optical power standard
Assessment indicators: the overall ONU optical power compliance rate > 97%