4G & 5G

4G Subscribers reached 497 million by Year end 2004, growth outpaced 3G.

March 11, 2015: GSA, the Global mobile Suppliers Association, has underlined the accelerating pace of development of LTE around the world by confirming that LTE subscriptions are growing faster than any other mobile communications system technology, and by a substantial margin. Referring to newly-released data provided by Ovum Ltd, GSA calculated that 4G LTE subscription […]


Glossary – C

Cabinet A container that may enclose connection devices, terminations, and equipment. Cable assembly A fixed length of cable with connectors installed on both ends. Sometimes called a patchcord, patch cable, or jumper. Cable jacket The protective outer covering of wire or optical cable. Common materials include polyethylene (PE), polyurethane (PU), polyvinyl chloride (PVC) and Teflon […]

100G & 400G

DWDM Disadvantages and DWDM Advantages

DWDM Advantages and DWDM Disadvantages Breif introduction about DWDM Fiber with great capacity of bandwidth for long haul back bone data transmission. and DWDM, which is short for Dense Wavelength Division Multiplexing. is one of the dominant technology used to utilize the application of fiber cable. It means multiplex a group of wavelengths into and […]


WDM-PON Technology

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 […]


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. […]

100G & 400G

40G, 100G, 400G is not far

Is it possible to think of something without knowing a word to describe it ? According to some studies, humans understand the concept of numbers and counting before knowing the words for those numbers. Perhaps that means that this month’s blog will be easier for everyone to understand, since I’ve found that it’s hard to […]


OFC – 2015

Technical Conference: 22-26 March 2015 Exposition: 24-26 March 2015 Los Angeles Convention Center, Los Angeles, California, USA OFC—A Dynamic Global Gathering OFC is the largest global conference and exposition for optical communications and networking professionals. For over 40 years, The Optical Fiber Communication Conference and Exposition (OFC) has drawn attendees from all corners of the […]


Hybrid GPON/G.fast distribution point unveiled by Telnet Redes Inteligentes

Telnet Redes Inteligentes S. A. has introduced a Hybrid Fiber-Copper Access Distribution Point (HFCA-DP). The platform is the first to combine GPON and G.fast distribution point equipment (DPE) capabilities in a manner fully interoperable with Alcatel Lucent and Huawei GPON optical line terminals (OLTs), the company asserts. The DPE also can be used in WDM-PON […]