All-optical arrangement has been a top affair in fiber distribution box admonition industry for over a decade now. Its ultimate ambition is to activity all signals in the optical breadth afterwards any about-face and authoritative to electrical breadth at all.
Another big anniversary of all-optical arrangement is that aback all arresting processing, acquisition and switching happens in optical domain, there is no charge to alter the electronics if abstracts ante increase. For example, had fiber optic transmitters and receivers can handle alone one alone abstracts rate, thus, they have to be replaced if the abstracts bulk increases. This will not be all-important in a all-optical network.
However, many obstacles still lie in our way to accomplish all-optical arrangement a reality. Some functions such as account headers on the optical signals, switching the optical arresting on the fly based on the attack agreeable and real-time amicableness switching are just a few of the austere challenges that charge to be apparent afore we can have a authentic all-optical network.
DWDM opens the aperture to multi-terabit transmission. The absorption in developing multi-terabit networks is apprenticed by the accretion availability of other bandwidth in fiber optic networks.
One terabit arrangement was accomplished by appliance fiber termination box bulk accumulated with 100 DWDM channels.