WDM-PON Technology A typical wavelength division multiplexing PON (WDM-PON) architecture is shown in Figure 4-1. The wavelength division MUX/DEMUX is employed in the ODN. In the example in Figure 4-1, array waveguide gratings (AWGs) are used to MUX and DEMUX wavelengths to or from ONUs. Signal transmission in WDM-PON is similar to that in the […]
Day: March 19, 2015
Glossary – B
Backbone The cabling used to connect entrance facilities, crossconnects, telecommunications closets, and equipment rooms. The backbone may consist of either interbuilding and/or intrabuilding cabling. Backreflection The loosely-used term covers optical return loss (ORL) for spans, reflectance for components, and Fresnel reflectance. Backscatter coefficient The ratio of the optical pulse power (not energy) at the OTDR […]
How to choose Fusion Splicer
How to choose a fiber optic fusion splicer (welding machine, or splicing machine) Background Since optical fiber start for business application in mid 1980s, its about 30 years now. people right now adequate to the benefits of it. and it is widely used worldwide, no matter in developed country or developing country, however, it is […]
HOW To choose fiber optic cable
HOW To choose the right fiber optic cable for your fiber optic network? Background of fibe roptic nework The fundamental difference between a fiber optic communication system and other types is that signals are transmitted as light. Conventional electronic communication relies on electrons passing through cables. Microwave communication relies on microwaves travelling through open space. […]