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Understand Ports On CWDM and DWDM MUX DEMUX

There are often channel ports, line ports, and expansion ports on the CWDM and DWDM MUX/DEMUX. what exactly are they? Here are the details on CWDM and DWDM MUX/DEMUX ports.
Posted on December 20, 2016 By FS.COM
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How to Build A Passive Optical LAN (Local Area Network)

Local area network (LAN) is being widely deployed in the enterprise, university, hospital, army, hotel and places where a group of computers or other devices share the same communication link to a server. Most of the traditional LAN are based on Ethernet copper cable. As more and more devices and cables are adding to the existing copper based LAN, problems come out. Bottlenecks of bandwidth, cabling space, cable infrastructure are limiting the network services. To better organize the local area ...
Posted on November 8, 2016 By FS.COM
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Centralized Splitting vs Distributed Splitting in PON Based FTTH Networks

Passive optical network (PON) based FTTH access network is a point-to-multipoint, fiber to the premises network architecture in which passive optical splitters are used to enable a single optical fiber to serve multiple premises. The optical fiber splitter can be placed in different locations of the PON based FTTH network, which involves using centralized (single-stage) or distributed (multi-stage) splitting configurations in the distribution portion of the network. In fact, both methods have it...
Posted on October 19, 2016 By FS.COM
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Guideline for Fixed Fiber Attenuator

As a beginner in fiber optic network, I used to think that the optical power should be as strong as possible. Even sometimes we use optical amplifiers to improve the optical signal. So what is the fiber attenuator used for? As we know, the source of the single mode fiber is laser, the power of which is extremely strong. Therefore we can use single mode fiber to achieve long distance transmission. But, if the transmission distance over single mode fiber is too short, too much light may overload a...
Posted on October 5, 2016 By FS.COM
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18 Channel CWDM Mux/Demux for 10G Network

Imagine turning a cottage into a majestic skyscraper without any innovation or construction. This is what Wavelength-Division Multiplexing (WDM) allows with your existing fiber optic network. Without deploying additional optical fiber, WDM network mux multiplexes multiple optical signal on a single optical fiber by using different wavelengths, which greatly relieves fiber exhaustion and extends link capacity. WDM technology comes into two flavors—CWDM and DWDM. In this article, we’re gonna explo...
Posted on July 20, 2016 By FS.COM
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How to Design Your FTTH Network Splitting Level and Ratio?

In Passive Optical Network (PON), optical splitters play an important role in Fiber to the Home (FTTH) networks by allowing a single PON interface to be shared among many subscribers. Optical Splitters are installed in each optical network between the PON Optical Line Terminal (OLT) and the Optical Network Terminals (ONTs) that the OLT serves. During the deployment of fiber to the home passive optical network, usually, we will face some physical access network design problems. This article may h...
Posted on June 1, 2016 By FS.COM
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How to Install Your CWDM MUX DEMUX System?

Coarse wavelength division multiplexing (CWDM) technology is developed to expand the capacity of a fiber optic network without requiring additional fiber. In a CWDM system, CWDM MUX DEMUX (multiplexer/demultiplexer) is the most important component. Usually, a CWDM MUX DEMUX is used to increase the current fiber cable capacity by transmitting multiple wavelengths, typically up to 18 separate signals over one fiber. This article may mainly describe how to install your CWDM MUX DEMUX system. Unless...
Posted on March 3, 2016 By FS.COM
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Do You Know All These Terminologies of WDM Technology?

As an unprecedented opportunity to dramatically increase the bandwidth capacity, WDM (Wavelength Division Multiplexing) technology is an ideal solution to get more bandwidth and lower cost in nowaday telecommunications networks. By virtue of fame, WDM becomes a household word now. Yet, most of the time, we only know what is “WDM” but do not really know WDM technology. Actually, there are various of terminologies used in WDM that are always a headache for us. Now, let’s see what are they. WDM ...
Posted on October 27, 2015 By FS.COM
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From O to L: the Evolution of Optical Wavelength Bands

In optical fiber communications system, several transmission bands have been defined and standardized, from the original O-band to the U/XL-band. The E- and U/XL-bands have typically been avoided because they have high transmission loss regions. The E-band represents the water peak region, while the U/XL-band resides at the very end of the transmission window for silica glass. Intercity and metro ring fiber already carry signals on multiple wavelengths to increase bandwidth. Fibers entering...
Posted on October 12, 2015 By FS.COM