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Monthly Archives: December 2016

Information of Fiber Optic Cables

Fiber Optic CablesMany individual fibers are bound together around a high-strength or central steel cable plastic carrier that you use to carry the cable and also provide support. The core of the fiber is covered with a number of protective materials such as Kevlar, polyethylene, and aluminum. Since the core and the cladding are made from differing materials, the light travels at different speeds.

As the light wave traveling in the fiber reaches the boundary between the cladding and core, it bends back into the core. The bouncing and bending of the light causes it to travel fast thus light and information are transmitted fast. There are usually two types of optic fibers: single and multi-mode fibers. The single mode fiber features a small core (about 10 micrometers) and a cladding of 100 micrometers in diameter. Since the cable is small, it carries only one light wave over a long distance. Bundles of the single-mode fibers are heavily used in undersea cables and long distance telephone lines.

Multimode optic fibers have a large core (50 micrometers) and a cladding diameter of 125 micrometers. Due to this, it can carry hundreds of separate light waves over short distances. This fiber is often used in urban systems that require many signals to be carried to the central switching stations where they are then distributed.

Other applications of fiber optics

In addition to using the fibers in transmitting information, they are also used in other applications. One of the applications is in the lensing technology where the fibers make it possible for people to manufacture a wide range of lens shapes from the optical fiber.

The optic fibers are also applied in the endcap technology. The energy density at the output end of the fiber laser can sometimes be high but when you use an endcap, the energy diverges in a controlled manner.

Dealing With Common Windows PC Problems

There are a number of Windows PC problems that can easily be solved getting you back into enjoyable performance and they include the following:

Slow computer – It is one of the commonest problems among Windows users. Before considering replacing your PC consider the reasons behind the slowdown. Some of the reasons behind it include corrupted registry, unnecessary programs, spyware and fragmented data. You can easily get your speeds back by removing programs you never use or shutting them down when you are done using them. You can also get Windows applications to clean registry and run disk defragmenter.

Computer freezes – Viruses are usually behind this issue. Malware infections are on the rise, leading to the freezes. Computer hardware can also lead to the problem. Be careful when clicking links you are not familiar with or suspicious looking links to prevent viruses. Install anti-spyware and antivirus and ensure it is always updated. It is also helpful to check hardware drivers for updated versions and uninstalling components recently installed if you suspect the problem is hardware related.

Unexpected turn offs – If you keep experiencing unexpected computer, turn offs, you could have bad cable connections, inadequate power supply or defective battery. When your PC overheats, it is also likely to shut down so it can cool. Beat the problem by ensuring cables are connected properly and checking the fan regularly so you can dust and clean as appropriate. If you are using a laptop, you may want to check the battery; deterioration over time is inevitable and it may be time to have it replaced.

Web printing fails – You may be faced with a need to print documents from the web only to find that your computer won’t print. It could be because the document you are trying to print is password protected hence making it not printable or it could be that you have turned on pop-up blocker. It would be a good idea to allow temporary pop-ups and you can also find legitimate programs to break codes in documents that are protected.

Strange noises – They could be vibration or buzzes. They usually are as a result of failed or failing hardware. Electrical component problems may cause whining noises whereas lack of ventilation can cause the buzzing noises. Consider cleaning the fan and filter off any dust and ensure the air inlets are free. In some cases, you may need to uninstall and reinstall sound drivers or replace sound card.

Problems getting online – Network misconfigurations, software and hardware router errors, incorrect IP address, service provider latency and firewall application can all be responsible for this. Check all elements that matter, including your network connection status so you can reboot the router where necessary or call your ISP.