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Basic Technology About Fiber Optic Cable


From data and voice to security and videoconferencing, many of today’s IT infrastructure services rely on fiber optics to transmit information faster, farther, and in greater amounts than ever before. So fiber optics are more and more popularity in our internet. This post will try to answer some of the basic questions about fiber optic cable.

What is fiber optic cable?
A fiber optic cable is a network cable that contains strands of glass fibers inside an insulated casing. These cables are designed for long distance and very high bandwidth (gigabit speed) network communications. If you want to know more info about fiber optic cable specifications, you can visit the FiberStore “Fiber Optic Cable Tutorial” in our tutorial.

There are two types of optical fiber cables, Single-mode VS Multimode?
Single-mode fiber gives you a higher transmission rate and up to 50 times more distance than multimode, but it also costs more. Single-mode fiber has a much smaller core than multimode fiber-typically 5 to 10 microns. Only a single lightwave can be transmitted at a given time. The small core and single lightwave virtually eliminate any distortion that could result from overlapping light pulses, providing the least signal attenuation and the highest transmission speeds of any fiber cable type.

Multimode fiber gives you high bandwidth at high speeds over long distances. Lightwave are dispersed into numerous paths, or modes, as they travel through the cable’s core. Typical multimode fiber core diameters are 50, 62.5, and 100 micrometers. However, in long cable runs (greater than 3000 feet (914.4 ml), multiple paths of light can cause signal distortion at the receiving end, resulting in an unclear and incomplete data transmission. For example, you can try to compare the single mode duplex fiber vs multimode duplex fiber optic cable, and well know their different.

Relationship between fiber optic cable and fiber patch cord:
A fiber patch cord is a fiber optic cable capped at either end with connectors that allow it to be rapidly and conveniently connected to CATV, an optical switch or other telecommunication equipment. Its thick layer of protection is used to connect the optical transmitter, receiver, and the terminal box. This is known as “interconnect-style cabling”.

What types of connectors should be used?
There are a number of connector styles on the market including LC, FC, MT-RJ, ST and SC. There are also MT/MTP style connectors that will accommodate up to 12 strands of fiber and take up far less space than other connectors. This connector is intended for use with indoor loose tube no-gel cable constructions. However, the most popular connectors are SC, which push in then click when seated, and ST, also known as bayonet style, that are pushed in and twisted to lock. That should be a consideration when making product selections.

What kind of jacket rating and type do you require?
Fiber cable jackets come in many styles. As an example, fiber can be Indoor only, Outdoor only, Indoor/Outdoor, Tactical and it can also have Plenum or Riser ratings.

Jacket color is relatively standardized.
a) Multimode = Orange
b) 50/125um 10G = Aqua
c) Single Mode = Yellow
d) Indoor/Outdoor or Outdoor = Black
e) Custom jacket colors are also available for indoor fiber cables

Whether you are working in a residential or commercial environment. FiberStore offers a wide variety of fiber cables, and other fiber optic cables related prodcuts, such as fiber patch cable, fiber optic connector, fiber transceiver. No matter how complex or simple your installation needs are, we have the expertise to provide you with the right products and information for both your fiber optic cable, custom fiber optic assembly and fiber optic connector needs. If you wanna customize your fiber optic products, pls give us a call, our Tel is  +86 (755) 8300 3611 or sent your detail requirement email to sales@fs.com. Thank you!

Overview Single Mode Duplex Fiber Cable

Duplex Fiber Optic Cables:

Duplex fiber cables consist of two fibers, either single mode duplex fiber or multimode duplex fiber optic cable, having their jackets conjoined by a strip of jacket material, usually in a zipcord (side-by-side) style. Use duplex multimode or singlemode fiber optic cable for applications that require simultaneous, bi-directional data transfer(One fiber transmits data one direction; the other fiber transmits data in the opposite direction). Duplex fiber is available in singlemode and multimode.

Duplex Fiber Optic Cables have two tight-buffered, up to 900 fibers surrounded by an aramid yarn strength member with a flame retardant outer jacket. The cable allows for flexibility and reliability for use in interconnect. The cable is designed to meet or to exceed the requirements of today’s premise wiring systems.

Duplex multimode fiber optic cable and singlemode duplex fiber cable alike are used for two-way data transfers. Larger workstations, switches, servers, and major networking hardware tends to require duplex fiber optic cable. Duplex cables can be more expensive than Simplex cables, and are compatible with any HDMI extender.

Single Mode Duplex Fiber Cable:

Single-mode duplex fiber optic cable is meant to transmit data over long distances with reliability and high speed. Single-mode cables only carry one ray of light at a time, which is what makes them better for long-distance transmissions. A duplex fiber cable consists of two fibers for simultaneous, bi-directional data transfers, earning the nickname of zip cord fiber optic cable systems.

Single mode duplex fiber is very similar to a multi-mode fiber cable in many ways, with the biggest difference being that the glass center of single-mode cables is significantly smaller, at about 10 microns in diameter. The smaller size is what allows these cables to transmit data across a distance of up to 40 miles with a bandwidth of 1Gbs. However, single-mode cables are usually more expensive than their multi-mode counterparts, so they’re not always a viable option.

As opposed to single-mode cables, which are smaller and are aimed at carrying data across longer distances, multimode cable is better for transmitting data across shorter distances. These cables are larger, and therefore have more bandwidth than their smaller counterparts. It’s important to note that you are capable of running multi-mode cable across a long distance, however, it can limit the bandwidth from 10Mhz to 30Mhz.

Choose the single-mode or multimode duplex fiber cable:

When deciding whether you should install single-mode or multi-mode cable, the first question to address is how far will the data be transmission? This may help in narrowing which optical fiber cable is needed for the project.

If you need to transmit data over a long distance, then single-mode bulk fiber cable is your best bet. With a core between 8 and 10 microns in diameter, these cables can transmit data up to 40 miles with a bandwidth of 1Gb’s. However, single mode transmitters typically use solid-state laser diodes.The higher cost of these optical emitters means that single-mode equipment can be anywhere from two to four times as expensive as multi-mode equipment. Multi-mode equipment will not launch (inject) enough light into a single-mode fiber since the light carrying core of this fiber is only 9 microns in diameter compared to 62.5 microns in diameter for multi-mode fiber. Multi-mode fiber optic cable bulk, which are larger and have more bandwidth, are capable of transmitting data over a few miles, but running the cable that far will limit the bandwidth from 10Mhz to 30Mhz. It’s important to consider all of these factors before you decide which type of fiber optic cable is best for you.

FiberStore is your fiber optic cable specialists. We provide a full range of fiber optic cable,such as a fantastic selection of singlemode duplex 9/125 fiber optic cable – ideal for low-loss, high bandwidth transmissions over long distances.Do you want to know more info about cost of fiber optic cable or fiber optic cable specifications,pls focus on our blog or our company .