15 Best Blogs to Follow About Network Optimization

Posted by John Kornegay on Wed, Mar 7, 2018 @ 15:03 PM

Network optimization is pretty challenging and requires effort and expertise. However, as they say, the bitter the challenge, the sweeter the reward. Before you dive into it, do the right amount of research. Once you get the hang of it, the results will amaze you and, well, others!

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Topics: network simulation, Network Optimization

Understanding Radiation Resistant Fiber: What you need to know

Posted by George Zhu on Thu, Jan 11, 2018 @ 16:01 PM

 Under the ideal environment condition, the primary fiber attenuation in single mode fiber comes from intrinsic characteristics of the glass and is usually less than 0.2 dB/km. However, when the fiber is exposed to high radiation environment for an extended period, for example in a nuclear facility, the fiber's Radiation-Induced Attenuation (RIA) will accumulate and become fiber's dominant source of loss as the electrons are trapped in the glass due to ionizing radiation. It also takes time for the fiber to recover from the radiation after the radiation source is removed. Depending on the temperature, radiation doses, and radiation sources, the fiber may or may not recover to its original state.

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Topics: om4 fiber, om3 fiber, multimode fiber, corning clearcurve, step-index fiber,, graded-index fiber,

Multimode Graded Index Fiber: What It Is And Why You Need To Know

Posted by George Zhu on Wed, Jan 3, 2018 @ 11:01 AM

Graded-Index Fiber, also known as G.651.1 under International Telecommunication Union (ITU) standards, is a type of fiber whose refractive index decreases gradually as the radial distance (distance to the core center) increases. In comparison, what we commonly have seen is G.652.D fiber which has a step-index refractive index profile. This article will compare graded-index multimode fiber with traditional step-index fiber, as well as its advantages when dealing with modal dispersion, a common signal distortion error.

The graph below shows the different refractive index profiles of the fiber core and cladding.

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Topics: om4 fiber, om3 fiber, multimode fiber, corning clearcurve, step-index fiber,, graded-index fiber,

An Introduction to Large Core Optical Fibers

Posted by George Zhu on Thu, Sep 28, 2017 @ 10:09 AM

The most common multimode optical fibers, which allow multiple light modes to propogate along the link simultaneously, are designed with a core diameter size of 50µm for for high-speed communications networks.  You may recognize these types of fibers by industry specifications such as OM2, OM3, and OM4 or by brand names like Corning® ClearCurve® and OFS® LaserWave®.

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Topics: optical fibers, specialty optical fibers, medical fibers, high power lasers, large core fibers, multimode optical fibers

How Does a Dispersion Compensating Fiber Reduce Chromatic Dispersion?

Posted by George Zhu on Thu, Apr 27, 2017 @ 16:04 PM

An important factor in the performance of fiber optic communications systems, chromatic dispersion is a topic and performance characteristic that is important to both understand and account for when operating and/or designing equipment for fiber-based networks.

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Topics: optical fiber, refractive index, chromatic dispersion, dispersion compensating fiber, dispersion compensating module

Buying Optical Fiber for Network Testing and Latency Applications

Posted by Kevin Miller on Fri, Mar 31, 2017 @ 15:03 PM

When the time comes to buy spools of optical fiber for testing and demonstrating communications systems, there are a few items to consider that will help ensure you end up with an ideal setup.  Since it has been proven that following a few best practices will help you get the most out of your fiber, thinking about these four important items in advance will allow you to further qualify your needs as well as speed up the purchasing process.

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Topics: optical fiber, fiber spools, fiber latency, network simulation, fiber network simulation, buy optical fiber, optical time delay

What Is Optical Fiber?

Posted by Tiffany San Souci on Thu, Jun 9, 2016 @ 09:06 AM

Optical fiber is made by drawing glass or plastic to a desired length and diameter (slightly larger than a human hair).  This flexible and highly pure fiber is most commonly used to transmit light for a wide range of applications including visible light displays, sensors, and high-speed communications networks which we will discuss in this article.

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Topics: optical fiber, optical fibers, single mode optical fiber, multimode optical fiber

History of Optical Fiber

Posted by Tiffany San Souci on Mon, Jun 6, 2016 @ 09:06 AM

The first instances of glass being drawn into fibers date back to the Roman times, however it was not until the 1790’s that a pair of French brothers named Chappe, invented the first “optical telegraph”. This primitive system was made up of towers outfitted with a series of lights that operators could use to relay messages back and forth.

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Topics: fiber optic

What Does Your Optical Fiber Test & Demonstration Setup Say About You?

Posted by Kevin Miller on Thu, May 12, 2016 @ 09:05 AM

Often not considered, it is important to remember that looks really do matter!

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Topics: optical fiber, fiber spools, fiber latency, fiber network simulation, fiber test, buy optical fiber

Protecting the Integrity of Municipal Fiber Optic Networks

Posted by Kevin Miller on Mon, May 2, 2016 @ 10:05 AM

In order to meet the growing needs of the local community, many municipalities have chosen to make significant investments to both deploy and maintain their own fiber optic networks for communications relating to a number of important areas:

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Topics: remote fiber test system, fiber monitoring system, fiber monitoring, fiber optic intrusion detection, municipal fiber optic network, emergency service monitoring