Explain the operation and application of fiber optic components?
414117
Optical fibers act light light tubes.  It is as if the internal walls of the fiber are coated with a morrored substance.  Whenever the light traveling down the fiber tries to exite through the wall of the fiber the ligt is reflected back into the firber path.  So almost 100% of the light entering, exists at the other end.\n\nSince th fibers transmit light which moves faster than any other phenomenon on Earth, optucal fibers are perfect for use in High-speed communications applications.\n\nData is converted to digital signals and that it turned into a pattern of light which is transmiotted down the fiber.  With fiber optics we can rung Gigabytes fo data in places were only kiliobyts of data was transmitted before.\n\nThere are also medical applications for fiber optics where small cameras can be inseted into the human boody and the images from the camera are sent over a fibe optic line to the doctor.
128889
Here ya go!\n\nhttp://science.howstuffworks.com/laser.htm
846330
Here is the real answer, not a made up one, not what I think, and not something I heard "sometime" from "someone".\n\nCountries like China, India, and Thailand have fiber optic networks because the networks they are putting in aren't replacing old ones, they are brand new.  These countries previously had very limited communications infrastructure.  When the time came they put in fiber optic because in the end it's more reliable, cost-effective, and can handle a lot more data.\n\nIn the case of COX, they handicap their modems programmatically to perform at lower speeds.  Business clients get the same modems, pay more and get faster download and upload speeds.  It's all about economics and sales.\n\nHowever, some telecom providers are pushing for legislation to control your bandwidth even further.  This way they will allow higher speeds for companies that pay them and lower for those that don't.  If you care about your internet speed the following site is definitely worth a look:  http://www.savetheinternet.com/
570316
10 years- fiber optic?  not yet.  Power cables will be the supply of telecommunications.  the power we currently get runs between 1-60Hz... yet the cables are so wide they can handle well into the Tera-hertz.  Com ed is already experimenting on multiplexing signals to bring voice, TV, and data to... EVERYWHERE!  The power grid encompasses everything and has NO ZONING!  You would travel with a small lightweight access box... plug into the wall... an ethernet cable to the lap top... and voila!  your on YOUR internet and phone account EVERYWHERE you go.  The lines are already laid which means the system is ready to go.  fiber cables still have to be laid all over and run to each and every home and business.\n\n20 years- fiber?  maybe.  its important to remember that there isnt a single technology that utilizes fiber to its full capacity.  how do we know?  because we dont know the maximum bandwidth of fiber cables.\n\n30 years- fiber?  probably.  at this point we should have wireless access everywhere, internet on our wrist watch, and TV streamed directly to our brain by the Motorola/AT&T/Coca-Cola/Chinese Government/ABC-TimeWarner conglomeration.  oh dont forget the TIVO add-on shoe sole insert.
459593
You could actually get a very fine fiber optic inside the cocoon's tip and video whats going on through the whole process. I think I once saw such a video about 8-9 years ago, I can't recall more now, but if I do, I'll let you know.
823169
Kindly go through Tennanbaum Networking book, they ask most questions from it.\n\nSome of the ques i know are:\n1.7 layers of the network\n2.TCPIP protocol\n3.cables,fibres,etc\n4.encryption and cryptography\nand other topics in the above book
872458
Try this, it just might help you http://en.wikipedia.org/wiki/Optic_nerve\ngood luck.
709379
Optical isolation is used whenever there exisits the possiblity of a\nlarge voltage difference between the grounds of the two pieces\nof equipment being tied together via the communication line. In industrial situations there are often many volts\nof difference between the ground of one piece of equipment and\nanother, especially if they are fed from different transformers or\nsubpanels. By optically isolating the communication lines between\ntransceivers and controllers these voltage differences are no longer\na concern (up to a point, usually 1KV or more). The difference\nbetween the ground voltage of two or more pieces of equipment\narises due to resistive losses in the wiring, conductivity of the\nearth, and the currents running through those ground paths.\n\nIt makes no difference if we are discussing a CAN network or\nany other means of communicating using wires. There must\nbe total galvanic isolation (no metallic continuity) from one\nside of the optoisolator to the other. Normally, a specialized,\nisolated, low current supply is placed in each piece of equipment\nto power the optically isolated side of the transceiver hardware.
3452
it is possible to get fiber optic connections to your house at a speed of 1gb.. although you usually have to live in a major metropolitain area.. or near one... is this wat you were looking for? hoped this helped and if u need to know more then you can e-mail me at cmg925@yahoo.com
264618
Hi, I think you're great, but i'm not going to type for 5 hours when all you needed to do was put "fibre optics" into the search engine. \nTry here:\nhttp://electronics.howstuffworks.com/fiber-optic1.htm
1030553
Your questions are too generalized.  There are a lot of topics regarding router configuration, modem and DSLAM (Digital Subscriber Line Access Multiplexer).\n\nIn a nutshell (if I understood you correctly)-\n\nDSLAM is a network device, usually located at a telephone company central office, or within a neighborhood SAI (Serving Area Interface - in layman's term a place that's been structured to offer broadband service, like some towns or counties) as part of a digital loop carrier, that receives signals from multiple customer Digital Subscriber Line (DSL) connections and aggregates the signals on a high-speed backbone line using multiplexing techniques. Depending on the product, DSLAM multiplexers connect DSL lines with some combination of Asynchronous Transfer Mode (ATM), frame relay, or Internet Protocol networks.\n\nA router is a computer networking device that forwards data packets across an internetwork toward their destinations, through a process known as routing.\n\nRouter configuration depend on the type of Internet account (PPPoE, Static or Dynamic/DHCP), you have.  This is normally dictated by your ISP.\n\nCustomers connect to the DSLAM through DSL modems or DSL routers, which are connected to the PSTN network via typical unshielded twisted pair telephone lines. Each DSLAM has multiple aggregation cards, and each such card can have multiple ports to which the customers lines are connected. Typically a single DSLAM aggregation card has 24 ports, but this number can vary with each manufacturer. The most common DSLAMs are housed in a telco-grade chassis, which is supplied with −48 V DC. Hence a typical DSLAM setup may contain power converters, DSLAM chassis, aggregation cards, cabling, and upstream links. The most common upstream links in these DSLAMs use gigabit ethernet or multi-gigabit fiber optic links.\n\nFrom a router perspective, the DSLAM acts like a massive network switch.\n\nYou can picture it this way - your computer or computers (whether wired or wireless) connects to the router, which is connected to the modem.  The modem connects to the Internet Service Provider (either through DSL or Cable broadband) which allows you access to the Internet.\n\nTry these sites for "light reading" on this -\n\nhttp://computer.howstuffworks.com/search.php?search=configuring%20routers&fr=ch&page_ref=http://computer.howstuffworks.com/\n\nhttp://en.wikipedia.org/wiki/DSLAM\n\nhttp://en.wikipedia.org/wiki/Internet
9458
Try this: http://www.rp-photonics.com/pockels_cells.html
1004957
Frequency modulation, called FM, is a more sophisticated modulation scheme than AM modulation. It is well-suited to the inherent properties of optical fiber since proper recovery of the encoded signals only requires measurement of timing information, one of fiber’s strengths. FM is also immune to amplitude variations caused by optical loss, one of fiber’s weaknesses. The heart of the FM modulator revolves around a high-frequency carrier. Now, instead of changing the amplitude of the carrier, the frequency of the carrier is changed according to differences in the signal amplitude. Part of the advantage of FM systems is buried in mathematical analyses that show that the signal-to-noise ratio at the receiver can be improved by increasing the deviation of the carrier. \n\nFM also has the advantage of eliminating the need for highly linear optical components that are required for AM systems. Often optical systems employing FM encoding refer to the technique as pulse-frequency modulation (PFM). This simply means that the FM signal is limited (converted to digital 0’s and 1’s) before it is transmitted over the fiber. The result is the same. In multiple channel FM systems, each video signal is modulated on a separate carrier. These carriers are then combined to modulate one light source. Each FM video modulator is adjusted to balance distortion products, achieve best signal-to-noise/bandwidth plus compensate for the non-linearity of the light source. As more video channels are added, the overall modulation index of the combined signal increases, which degrades the per channel signal-to-noise ratio (i.e., there is less optical power available per channel.) \n\nFrequency modulation uses the information signal, Vm(t) to vary the carrier frequency within some small range about its original value. Here are the three signals in mathematical form: \n\nInformation: Vm(t) \nCarrier: Vc(t) = Vco sin ( 2 p fc t + f ) \nFM: VFM (t) = Vco sin (2 p [fc + (Df/Vmo) Vm (t) ] t + f) \n\n\nand if u get the below article whole funda be resolved
243416
loss= coupler loss + fiber loss + detector loss
225165
The first thing that you really need to pay attention to is the dynamics of the wire itself and not the physical size.  Your statement is very bias as I could say that why do fiber optic lines tranmit so quickly and the wire holding up the golden gate bridge is not quicker???\nThe quickest and best answer unless you have degrees in physics is the density of the fibers.  It all comes down to density and a mirid of other factors, but density is the key my friend.\n\nHappy conducting my fiber friend!
64979
"A Passive Optical Network (PON) is a fiber to the premises configuration in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32. A PON consists of an Optical Line Termination (OLT) at the communication company's office and a number of Optical Network Units (ONUs) near end users. It is, in other words, a point-to-multipoint configuration, which reduces the amount of fiber required compared with point to point.\n\nDownstream signals are broadcast to each premises sharing a fiber. Encryption is used to prevent eavesdropping.\n\nUpstream signals are combined using a multiple access protocol, invariably time division multiple access (TDMA)."
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An optical fiber is a glass or plastic fiber designed to guide light along its length by total internal reflection. The light-guiding principle behind optical fibers was first demonstrated in Victorian times, but modern optical fibers were only developed beginning in the 1950's. Optical fibers became practical for use in communications in the late 1970's, and since then several technical advances have been made to extend the reach and speed capability of optical fibers, and lower the cost of fiber communications systems.