Tag: Simplex Cable

Get The Most Common Bare Fiber Optic Cables

In modern life, bulk fiber optic cable can carry a signal quite a distance — perhaps 60 miles (100km). On a long distance line, there is an equipment hut every 40 to 60 miles. And bulk fiber optic cables are widely used in today’s networking system.

A real fiber optic cable is made out of glass. The glass is incredibly pure so that, even though it is several miles long, light can still make it through. The glass is drawn into a very thin strand, with a thickness comparable to that of a human hair. The glass strand is then coated in two layers of plastic.

Fiber optic cable types can be single mode or multimode. Modes describe the distribution of light energy across the fiber. Light rays can travel through the wire as long as they hit the core-cladding interface at an angle less than that of the critical angle. Multifiber cable is a fiber optic cable with several optical fibers. While single-mode cable is only one fiber with a small core that only allows one mode of light to propagate. Common bulk fiber optic cable types include simplex, duplex, bare fiber, etc.

Simplex Cable – Simplex cables are fiber optic cables with a single optical fiber. Simplex cable varieties include 1.6mm & 3mm jacket sizes.They are used in applications that only require one-way data transfer. Simplex is available in single mode and multimode.

Duplex Cable – Duplex cables are fiber optic cables with two optical fibers in a single cable structure. Light is not coupled between the two fibers, typically one fiber is used to transmit signals in one direction and the other receives. They are usually set up side-by-side and can be used for applications that require simultaneous, bi-directional data transfer. Duplex fiber is available in single mode and multimode.

Bare fiber – Bare fiber refers to a fiber optic core and cladding only. The bare fiber is primarily used for connecting equipment on one end to a light source on the other. Bare fiber can be terminated, polished, or prepared for pig-tailing.

The structure of a 250um coated bare fiber cable:

Core (9um for standard single mode fibers, 50um or 62.5um for multimode fibers),
Cladding (125um),
Coating (soft plastic, 250um is the most popular, sometimes 400um is also used).

Bare unjacketed fibre cable is perfect for effect lighting and can be integrated into any ceiling, wall, bar front and other design applications. Bare fiber cable should only be used in applications where the fiber can be installed without the danger of scratching or damaging the fiber cable and where future protaction is not required.

Jacketed solid core fiber cable is integrally sheathed with PVC to provide mechanical protection. They are suitable for direct embedment in mortar, soil or sand beds as long as care is taken to avoid crushing, scratching, cutting or kinking of the cable.

FiberStore, as a leading provider of optical fiber cables for over 8 years, supplies bare fiber cables from Corning company. The corning optical cable is OFNR-rated, UV-resistant, fully waterblocked indoor/outdoor cables. These cables with water blocking technology eliminates the need for traditional flooding compound, providing more efficient and craft-friendly cable preparation. Available in 62.5µm, 50µm, Single mode, Multimode and hybrid versions.

Facts Of Fiber Optic Cables

People have really enjoyed the power and the flexibility of fiber optic cabling all around the world. Fiber optic cabling is  becoming the fastest, smartest and most flexible way to enable large amounts of digital data to be transmitted and received. These long thin strands of cable have revolutionized the way our phone, television and information systems work. Without these cables, we wouldn’t have high speed broadband internet. Fiber optic cables are inexpensive, flexible and do not take much power to run. These advantages have made them a popular favorite among many communication companies. The only problem is, many people still know little about fiber optic cabling technology.

Here are some fiber optic cabling facts:

Fiber optic cables have a history – The technology surrounding fiber optics has been around since the 1870’s. The first introduction of actual fiber optic cabling started showing up in the 1950’s. This is a technology rooted in solid history.

Fiber optic cables use light – There is no electrical current being passed through fiber optic cabling, only light. Because of this, there is no heat and no heat means no burning and no fire hazards. During normal use, fiber optics are the safest option for data transmission.

Fiber optic cables are fast – Data can be transmitted through fiber optic cabling faster than traditional cabling due to increased capacity. Right now, commercial uses of fiber optic cabling can transmit 10-80 Gigabits per second over just one channel. According to reports, the current record is 15.5 Terabits per second over a distance of 7,000km. To put that into perspective, that’s the equivalent of 10.3 million DSL connections.

Fiber optic cables have many uses – From the traditional use of data transmission, fiber optics have grown in their use. Now, they are used with gun sights, imaging optics, spectroscopy, supply low levels of power, signs, art and even artificial Christmas trees.

Fiber optic cables have various types – Two main types of cables are multi-mode optical fibers and single-mode optical fibers. A multi-mode optical fiber has a larger core (≥ 50 micrometers), allowing less precise, cheaper transmitters and receivers to connect to it as well as cheaper connectors. There is also large core optical fiber(common 100 micrometers or even 400 micrometers). There are also Simplex cable and Duplex cable.

Simplex Cable– There is a single strand of fiber which is surrounded by a Single strand of fiber surrounded by a 900 um buffer after that a layer of Kevlar and lastly the outer jacket. It is generally available in 2mm or 3mm in plenum or riser jacket. Plenum is stronger while riser cable is more flexible.

Duplex Cable– The concurrent operation of a circuit in both directions within data communications is known as full duplex. The system is called half duplex when it is capable of sending only one transmission at a time. Two single strands are attached at the center surrounded by a 900 um buffer, and then comes a Kevlar jacket and finally the outer jacket.

Other types of fiber optic cables are loose tube cable and tight buffered cable, distribution cable, ribbon cable, breakout cable, waterproof cables for moisture environment, etc.