What is DWDM?
Also known as: Dense Wavelength Division Multiplexing
DWDM, or Dense Wavelength Division Multiplexing, has been a key technology evolution, as it allows multiple signals to run over a single strand of fibre, thus dramatically increasing the bandwidth potential of an individual network link.
Today, multiple high-bandwidth services running at 10Gb/s, 40 Gb/s, and 100 Gb/s can be multiplexed onto a wavelength, and delivered over a single strand of fibre. Dark fibre networks represent an excellent way to ensure future capacity demands can be met.
Without DWDM most of the Web 2.0 and cloud-computing solutions in use today would not be possible.
Recommended content for you
AtlasEdge and Colt partner to power Portugal’s digital future with sustainable and high-performance connectivity
Lisbon, Portugal, March 18, 2025 — AtlasEdge, a leading European data centre provider, today announces a strategic partnership with Colt Technology Services (Colt), the global digital infrastructure company. Based in Portugal, this collaboration brings together ...
Read More 
Colt expands US infrastructure with new route connecting Transatlantic subsea cable to New Jersey and New York
Transatlantic subsea cable Apollo South now directly connects NJFX Premium Connectivity Hub on the Jersey Shore, linking economic and commercial centres in the US to Colt digital infrastructure in Europe Colt Technology Services (Colt), ...
Read More 
Partnering with Colt: Become an agent in the technology revolution
Hands reach out to each other. Handshake. Halftone retro hands. Paper cutout elements. Trendy vintage newspaper parts. Hands tied with thread. Shaking hands. Make a deal. Successful agreement The telecommunications landscape is transforming rapidly, creating ...
Read More 
Digital Infrastructure Insights: Elevating the customer experience
Home Glossary What is DWDM? Digital infrastructure insights Elevating the customer experience Back to digital infrastructure Welcome In this series we will looking at the critical role digital infrastructure (DI) plays in delivering an exceptional ...
Read More 
TV Asahi Corporation
Company Overview TV Asahi Corporation is a key broadcasting network that has contributed to the advancement of the broadcasting industry through rapid news reporting and live coverage since its founding in 1957. Striving to be ...
Read More 
Celebrating World Engineering Day in partnership with UNESCO
Home Glossary What is DWDM? Published by Colt Technology Services on 04 March 2025 News We are excited to announce that we are an official partner for World Engineering Day 2025 - an International Day proclaimed ...
Read More 