Verizon Fios Leaves Cable Internet In The Dust
Once upon a time, everyone connected to the Internet over phone lines Dialup was slow and the lines were often busy, but that was what we had
Verizon Fios Brings Fiber-Optics to Your Home
Even if you?re not a technical person, you have probably noticed Internet service providers talking about fiber-optic connections You know that fiber-optic connections are faster and provide higher quality, more reliable service
One Speed, Two Speed, All Speed, No Speed: DSL Internet And Its Mutations
Digital Subscriber Line (DSL) Internet is a form of Internet commonly used today by taking advantage of existing telephone infrastructure lines and manipulating them so that a wire not only transmits voice, but also data The technique has exploded in popularity and competes directly against cable Internet subscriptions
Employee Benefit Specialists Increases Productivity with MegaPath Bonded T1 Service : MegaPath Bonded T1 Service Delivers High Speed Internet Access
MegaPath Inc., the leading provider of managed IP data, voice and security services in North America, today announced that Employee Benefit Specialists (EBS), a provider of employee benefits administration and communications services deployed MegaPath's Bonded T1 service to increase the reliability and performance of the company's business critical applications. MegaPath's Bonded T1 service enables EBS to lower infrastructure costs, while also providing a fully managed service that reduces the company's network management overhead.
Fiber Optics - Bringing Us High Speed Internet
Generally, optics is a branch of physics (science) that deals with the nature, behavior and properties of light. Optics is also the study of interaction of light with other matter. It is also regarded as the sub-field of electromagnetism because scientifically, light is an electromagnetic wave. Applied optical sciences are often called optical engineering. Classical optics and modern optics are the two major categories of optics. Fiber optics is one of the main branches of optics that is very popular these days.
Thankfully We Now Have High Speed Cable Modem Services
What kind of speed are you dealing with these days? Come on, you know what I'm talking about. We all pretty much resort to our computers on a daily basis. As for me, I would have to say an hourly basis. I work on this thing.
How to Test Your DSL and Cable Internet Connection Speed
There are two measured elements that determine your internet connection speed. They are: The download rate, and the upload rate of data measured in bits per seconds.
Verizon FiOS Offers All-Digital Fiber-Optic Internet
Some Internet access providers claim to have an all-fiber optic network, but that is not quite true Every network providers except Verizon actually offers fiber-optic only to the curb; your signal travels into your home through regular copper wiring
Verizon Fios Internet is Blazing Fast
Verizon Fios Internet is Blazing Fast
When it comes to looking for an internet service provider, everyone is looking for the internet with the fastest speed With cable, DSL, and even dial up available, it can be hard to figure out who really has the fastest internet around
High Quality Fiber Optic Splice Tent For Fiber Cabling Contractors
Now everybody enjoys the convenience of emails, instant message, great web sites and even VoIP phone calls that high speed fiber optic communication network provides. But have you ever wondered how those magic fiber optic cables are installed from San Francisco to New York?
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How Do Fiber Optic Cleavers Precisely Cut Optical Fibers in a Flash?
:: What is optical fiber cleaving?
Simply put, optical fiber cleaving is the art of cutting glass optical fibers at a perfect 90? angle with a mirror like surface. This isn't as easy as it sounds.
Why do we need to cut the fiber at a perfect 90? angle at all? Well, this is required when we want to fuse two optical fibers together. Optical fiber fusion splicing always requires that the fiber tips have a smooth end face that is perpendicular to the fiber axis. The cleave quality is very important in determining the fusion splicing loss. This is especially true for specialty fibers such as erbium-doped fibers and dispersion-compensating fibers.
:: How do fiber optic cleavers achieve this?
The basic idea of optical fiber cleaving is first to scratch the fiber with a very hard diamond edge scribing tool, which induces a sufficiently large surface crack, then the fiber cleaver applies a tensile stress to the fiber which causes the crack to expand rapidly across the fiber cross section. Some other fiber cleavers apply the tensile stress first and then scratch the fiber with the diamond edge scribing tool.
:: How does the fiber cross section surface look like after fiber cleaving?
After cleaving, the fiber cross section typically consists of three regions: the mirror region, the mist region and the hackle region. The mirror region is first produced while the crack propagates across the fiber. We want the mirror region to be as large as possible. A perfect fiber cleaving will be 100% mirror region which will result in minimum fusion splicing loss.
But in reality, as the crack propagates more, multiple crack fronts are produced close to the end of the cleave and that region is called the hackle region. The hackle region is a rough surface area which will cause bad fusion splicing. We never want hackle region to exist.
Mist region is the transition area between the mirror region and the hackle region.
:: Factors that affect the fiber cleaving quality
There are two major factors which mainly determines a fiber cleaving's quality: the size of the initial crack and the applied tensile stress. In these two factors, the applied tensile stress plays a major part.
Ideally, the tensile stress should be low enough so the crack propagates and mirror region occupies the entire cross section of the fiber. When there are unacceptable amount of hackle region, in almost 100% cases, you should first adjust your fiber cleaver's tensile stress.
But on the other hand, too low tensile stress can cause problems of its own. The main problem is an angled fiber cleave instead of a perpendicular 90% cut. Angled fiber cleave is the other culprit causing bad fusion splicing in addition to cleaves with too much hackle region.
Another problem caused by too low tensile stress is that a large initial crack is required to make a cut. This large initial crack itself may be a reason for bad splicing.
Even the best fiber optic cleavers cannot guarantee a high quality cleave 100% of the time. Two other major problem with fiber cleaving is fiber lip and fiber chip. Fiber lip is a protruding piece of glass at the periphery of a fiber tip. If the lip is longer than a few microns than it exhibits a serious problem for a good fusion splicing. 99% of the time you should re-cleave your fiber once you see a fiber lip on the tip.
Fiber chip is the opposite of a fiber lip. Fiber chip means the a small piece of glass missing from the periphery of the cleaved fiber tip. Even though smaller chips usually do not cause any bad fusion splicing, larger ones can be a serious problem. Larger fiber chip causes surface tension to shear the molten glass at the fiber tip and thus distort the fusion splice geometry.
:: High precision fiber cleaver manufacturers
A vast variety of fiber optic cleavers are commercially available now ranging from high precision cleavers for manufacturing floor and laboratory use to low cost field fiber cleavers for field splicing applications. Major supplies include AFL Fujikura, Fitel, Tyco/AMP, Sumitomo, Corning Cable Systems and more.
Colin Yao is an expert on fiber optic communication technologies and products. Learn even more about fiber cleaver, fiber optic cleaving tool and high precision fiber cleaver on Fiber Optics For Sale Co. web site.
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