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by www.fiber-mart.com A fiber optic patch cord is a fiber optic cable having connectors at either end, which let it to be quickly and easily connected to optical transceiver in switch, router, or any other telecommunication equipment like optical line termination (OLT) or optical network terminal (ONT).   A  fiber optic patch cord  is made with a core having high refractive index, which is surrounded by a coating called cladding having low refractive index. That cladding again is reinforced and surrounded by a shielding cover for protection purpose. The core allows the transfer of optic signals with very little loss for great distances. The lower refractive index of cladding let the light back into the core. The light is reflected back into to core by phenomenon called total internal reflection. The protective shield over the cladding reduces physical damage to the core and cladding.   Regular fiber cable cladding measure 125 µm in diameter. As shown in the figure the core

by www.fiber-mart.com Fiber optic cables are being widely used in telecommunication and data networks around the world. Small networks like branch offices and large corporate offices having multiple campuses are making use of the fiber optic technologies to provide their users a reliable and efficient network.   Fiber optic cables  use light as the medium to transfer the data signals from one end to the other end. Unlike the copper or coaxial cables, there is no electric pulse or current involved in the transmission of signal through a fiber optic cable. Fiber optic cables are available in two main categories, i.e. single-mode fiber and multimode fiber. This article will look into the details of the two types of fiber optic cables and portray the differences, benefits and use cases for both types of fiber.   Single-mode Fiber Optic Cable   Single-mode fiber optic cables are designed in such a way that it allows light to travel straight down the fiber core with least amo

by www.fiber-mart.com In fiber optic network infrastructures, the whole concept is capable of fulfilling the high-demand and long reach needs of the customers mainly because of the deployed transceivers and fiber optic cables. The  optical transceivers  are the modules that are converting the electrical signal into an optical light signal and, with the help of lasers, sending it down the optical cable. The receiving part of the connection is also an optical transceiver that converts the optical light into electrical signals so the device can read the data received. Even though optical transceivers are doing the more complex job in the fiber optic network, optical cables are the most important part of the whole network infrastructure. Without them the fiber optic connection wouldn’t be possible.   When it comes to fiber optic cables, they come in many shapes and sizes depending on the type of the project they are needed for. However the main two categories by which they are divi

by www.fiber-mart.com The price of fiber optic transceivers such as, SFP, SFP+, XFP,  QSFP , and CFP keeps on going up over the time. And the price of the transceivers is even higher, when obtained from Original Equipment Manufacturers (OEM) such as Juniper, HP or Cisco. Over all there are some benefits to implementing a single vendor network. However savings, from acquiring aftermarket transceivers, exceeds the economic value of vendor similarity, when having the huge pricing difference in fiber optic transceiver cost between OEMs and many 3rd party. This is the reason that many network operators have been shifting to 3rd party optics from last few years.   In reality, sales person from the OEMs and their approved suppliers try to get price competitive as hard as they can. However, they are bounded by contractual agreements identifying minimum sell prices of the pats. They keep trying to lower their price, they are still much higher compared to the 3rd party optics. Except the

by www.fiber-mart.com Transceivers modules that are used in gigabit Ethernet 1000base-LX launch only single mode 1030nm wavelength signals. This creates a problem if present network operates on multimode cables.   When a single mode signal is launched into  multimode fiber  a phenomenon called Differential Mode Delay (DMD) can create multiple signals within the multimode fibers. This effect can confuse the receiver and produce the errors. These multiple signals, caused by DMD, severely limit the cable distance lengths for operating Gigabit Ethernet. A mode conditioning patch cord eliminates these multiple signals by letting the singlemode launch to be offset away from center of the multimode fiber. This offset point creates a launch that is similar to typical multimode LED launch and the resulting multiple signals allowing the use of 1000base-LX over existing multimode cable system.   Mode conditioning patch cords are necessary where Gigabit 1000 Base-LX switches and router

by www.fiber-mart.com Coarse Wavelength Division Multiplexing s one of the optical transport technologies that make use of the light wavelengths and fiber high band capacities along with SDH and DWDM technologies.  CWDM  is not the latest technology developed for optical transmission but it has its own advantages for choice in particular circumstances.   1.Simpler implementation and operation versus the DWDM implementation. Simpler refers in this case to simpler optical hardware components necessary to implement the transmission system. Wavelengths spacing is much wider than in classical DWDM systems. Spacing is usually 20nm between lamdas instead of 50GHZ and 100GHZfrom DWDM. CWDM systems are using 8 or 16 or 32 lamdas versus 96 channels in DWDM systems. In 2002 the ITU standardized a channel spacing grid for use with CWDM (ITU-T G.694.2), using the wavelengths from 1270 nm through 1610 nm with a channel spacing of 20 nm. (G.694.2 was revised in 2003 to shift the actual chan

by www.fiber-mart.com The ultra-high density  Juniper QFX10000 Modular switches  provide the ultimate support and solid ground for today’s most demanding network operations and applications. Their scalability options and their stable performance make them optimal for deployment in medium to large sized Datacenters as well as in private and public clouds. With the custom built ASICs the Juniper QFX10000 switch can deliver from 3 to 96 Tbps of throughput in your network thus becoming a safe and long-term investment. The leading network architects in Juniper are also looking to increase this capability to even 200 Tbps in the near future. With the option to use up to 480 100GB/s ports in a single chassis the Juniper QFX 10000 is the industry leading switch in its class. This eventually enables you to evolve your network infrastructure and boost the performance by upgrading to 100 GB/s and leaving the 40 GB/s and 10 GB/s in the past. This would make the clients extremely happy and will

by www.fiber-mart.com Data centers are the main storage houses to store and distribute data on the internet.  With the growing demands like high bandwidth videos, it is hard to say how much data is being uploaded and downloaded every second on the internet. To cope up with the demand of great bandwidth and high- speed applications, data centers of modern times needs to be upgraded. One such up gradation is OM5 fiber cable also known as wideband multimode fiber(WBMMF). In this post we will see both sides of the same coin, means adoption of OM5 fiber in data centers is beneficial or not.   Revolution in Data Center Deployment   With the data centers shifting to support more digital strategies, we have to gear up to tackle new challenges, more users and an ever-evolving digital world. Data rates have grown from 10G, 40G and now beyond 100G in many data center networks. According to Cisco Forecast overview 94 percent of workloads and compute instances will be processed by data