Optical signals in optical cables have short wavelength why?
Because the attenuation of the fiber is much less at those wavelengths.
It depends entirely on the application. To see video in HD from a player with an HDMI output and no optical output, then HDMI is the best choice as optical cables won't work. HD video signals are output almost exclusively via HDMI now. Optical interfaces aren't available other than as a converted signal for long distances. HDMI is limited to fairly short lengths - about 60 feet or so. Optical cables can carry similar signals… Read More
All optical cables will sound almost exactly alike. There is no reason to spend a lot on these. Usually you get better shielding and performance by spending more, but optical signals are not interrupted by any source of outside interference. HDMI cables are similar, as it transmit a digital signal, a very inexpensice HDMI cable will yield the same results as the most expensive. Buy all cables from monoprice.com, they are the industry standard equipment… Read More
Optical fiber is conducting light, not electricity.
Optical fiber's main advantage over regular electric cables is that they don't experience electromagnetic interference of any kind, thus allowing signals to be sent where regular cables would get cut off. Another important advantage is that distance affects electric cables' data bandwidth much more severely than it does optic fiber.
Fiber optic cables carry light, not radio frequency energy. Somewhat like comparing apples to nuts.
There are actually about 10 types of Fiber Optic Cables. OFC: Optical fiber, conductive OFN: Optical fiber, nonconductive OFCG: Optical fiber, conductive, general use OFNG: Optical fiber, nonconductive, general use OFCP: Optical fiber, conductive, plenum OFNP: Optical fiber, nonconductive, plenum OFCR: Optical fiber, conductive, riser OFNR: Optical fiber, nonconductive, riser OPGW: Optical fiber composite overhead ground wire ADSS: All-Dielectric Self-Supporting
The main reasons are :- Speed - Optical fibre cables can transmit data at much higher rates than copper cable. Capacity - You can transmit more than on signal simultaneously in a single optical cable. Security - Optical cable is virtually impossible to 'tap' without being detected.
The pulses of light used in optical fiber are in the infrared or visible spectrum, which is shorter wavelength than the microwave radio spectrum. Neither microwave radio wavelengths nor ultraviolet spectrum wavelengths can pass through the materials used for fiber optic cables. In the early 1950s A. T. & T. had begun laying a system of a few thousand miles of underground microwave waveguides (similar in purpose to modern underground fiber optics systems) but the… Read More
No. Fiber is immune to electrical interference; there is no cross-talk between signals in different cables and no pickup of environmental noise.
Hiroshi Murata has written: 'Handbook of optical fibers and cables' -- subject(s): Optical fibers, Handbooks, manuals
Fiber optic cables are nothing but another transmission medium. All the protocol which works on Ethernet cable will work in Fiber optic cable also. In case of Ethernet, the digital data will be sent in electrical signal format. But Fiber Optic cables are passive devices. They can not conduct electrical signals. So the digital data signals needs to be converted to Optical signal before sending that via fiber. Usually after the conversion process, the header… Read More
# Optical fibres can carry more information as opposed to conventional cables. # Optical fibres are not affected by radio frequency interferrence # Information carried in an optical fibre can only be tapped physically (to steal information, the thief has to work on the optical fibre so that the light will travel to the thief)
There are speaker cables, unbalanced analog cables, balanced analog cables, coaxial digital audio cables and optical audio cables.
no, its just light being transmitted
Fiber optic cables containing silica called filamentous crystal crystalline silica is actually the main component of these filaments heap on the inner wall can be attached to the wire with the wire bent over bent when the optical signal from the wire the optical signal to one input of the specular reflection on the surface of the silica on the principle of reflective transmission until it reaches the other end of the optical signal conductor… Read More
No. Fibre optic cables use light instead of electrical signals. Depending on the function of the optical fibre either a laser or an LED will be used.
It's used to send video and/or audio from one location to another - usually as part of a security system. It sends the pictures and sound via radio waves (instead of cables) over a short distance. They're illegal in some countries, because they use radio frequencies that are already allocated to existing services - causing interference to legitimate users. Optical video transceivers are used to transform between the video signals and fiber optic signals, although… Read More
In a nutshell they are just faster and have a lot more potential to be more useful. However they optical fibers consumption of energy is not always optimal.
Less expensive - Several miles of optical cable can be made cheaper than equivalent lengths of copper wire. Higher carrying capacity - Because optical fibres are thinner than copper wires, more fibres can be bundled into a given-diameter cable than copper wires. This allows more phone lines to go over the same cable or more channels to come through the cable into your cable TV box. Less signal degradation - The loss of signal in… Read More
optical fiber ,twited pai,coaxial cable
I think it depends whether your HDTV requires them or not
Coaxial cable, Optical fiber cable, Twisted Pair
Optical cables have the highest data transfer rates.
TV signals are carried over radio links which use UHF frequencies in the range 200-1000 MHz. They are also broadcast from satellites at slightly higher frequencies, around 10 GHz. They are also distributed by cables that can be optical cables carrying light waves, and these can distribute a very high amount of data.
I'm a theatre and stage technician who primary works in the area of sound design. We commonly use optical cables in the theatre to send as many as 8 full audio streams at a time down the line using something known as ADAT. While professional optical cables are identical to consumer cables, except that they're often much less expensive, they are sometimes used in runs that can go extremely far, as much as 100 feet… Read More
Optical communication and data transfer. Ornaments-lights,showpieces etc.
They are about equal in quality. Far better than the analog hookup.
They are capable of running 5.1 surround sound in one convienient pin. Toslink cables are capable of 7.1 and also run on one pin.
optical fibers ordinary telephone wires coaxial cables Ethernet (its pin is bigger than ordinary telephone wires)
If your Vizio LCD TV only has an optical audio output how do you hook up your RCA cables that go to your stereo?
You need to buy a "Digital to Analog audio converter" (around $70 with Gefen brand). It will convert the Digital output (Optical) into a analog signal for your speakers. These converters rarely provide RCA cables(male/male) and Optical Cable(male/male). So you will have to buy them too. http://www.gefen.com/kvm/dproduct.jsp?prod_id=5279
Optical fiber cables transmit light from one end to the other. The data is encoded into this light beam and travels down the fiber in this light. Obviously you need optical sensors at each end to get the information in and out.
splicing is of optical fiber cable where as jointing is of cther cables
Because fibre has a lot more bandwidth and is more efficient than copper
Optical audio cables are a point-point type connection. There is a starting point and an ending point, with no intermediaries between them. If you wish to have the signal split, you need to use a splitter that provides multiple outputs. Other than that, the plugs are keyed, so there should be no mystery as to how they should be socketed safely in their respective ports. Connecting optical cables together just doesn't work. Yes, it's possible… Read More
People can buy digital optical cables online or at the physical store locations of stores such as Best Buy, Office Max, or Staples. Websites to purchase them could be eBay, Amazon, or Best Buy's website.
A laser link is an optical communication technology which uses light moving around in free space to transmit data for telecommunications or computer networking. This technology is quite useful rather than utilizing traditional optical fiber cables and transmission lines which constitute more "physical" uses of channels. Examples of laser link use is in spacecraft and satellite which send signals to earth and throughout space.
Typically EIDE cables connect to IDE Hard-drives and optical drives such as CD and DVD Drives. The cable connects between the motherboard of the computer and the hard-drive or optical drive. Normally most motherboards have two idea buses. You can have to drives per cable. So a total of 4 drives.
Easiest way is looking at the Rx signal information of the device receiving the optical signal. For instance, switches and routers are equipped with removable optical transceivers (SFP) which often have digital diagnostic monitoring ( DDM) capabilities. Available information includes Rx power, temperarure and bias current among others. The other way to easily measure attenuation is by using an optical power meter. In both cases the optical budget of the optical link (in dB), or… Read More
Fiber optics carry vastly more information than ordinary cables, for a given thickness of cable.
Advantages: Capacity Optical fibres carry signals with much less energy loss than copper cable and with a much higher bandwidth . This means that fibres can carry more channels of information over longer distances and with fewer repeaters required. Size and Weight Optical fibre cables are much lighter and thinner than copper cables with the same bandwidth. This means that much less space is required in underground cabling ducts. Also they are easier for installation… Read More
fibre has higher data capacity, takes less space, is cheaper, etc. than copper.
An optical fiber (or fibre) is a glass or plastic fiber that carries light along its length. Fiber optics is the overlap of applied science and engineering concerned with the design and application of optical fibers. Optical fibers are widely used in fiber-optic communications, which permits transmission over longer distances and at higher data rates (a.k.a "bandwidth") than other forms of communications. Fibers are used instead of metal wires because signals travel along them with… Read More
The question probably refers to a copper digital interface against an optical interface. The copper interface carries electrical signals while the optical interface uses light pulses to carry the signal. The quality of either of them is dependent entirely on the quality of data that is fed to the interface. A copper cable or an optical fiber carrying the same data will deliver identical signals at the far end. At high data rates fiber can… Read More
much wider bandwidth. Ie, many more signals can be run over the same cable. ---------------------------------------------------------------------------------------------------- Optical transmission has several advantages over copper wire: optical fibre's high bandwidth means that a lot more data can be transmitted faster. A pair of copper wires (which is what most houses in urban areas use for the initial point of access to the Internet can transmit two telephone calls simultaneously, while a single optical fibre can transmit over 80,000… Read More
fiber optic cables are sensitive to design irregularity and and their cost is high.
Medical Uses: Optical fibers are used in number of instruments that enable doctors to view internal body parts without having to perform surgery. They can be made in extremely thin flexible strands for insertion into the blood vessels, lungs and other parts of the body Communication: Telephone transmission method uses fiber optic cables. Fiber optic cables transmit energy in the form of light pulses and can handle tens of thousand of conversations simultaneously. Simple Uses… Read More
fibre optics tranfer data through total internal reflection so the data loss in negligable as comparied to metal wires available in the market.So the main use of optical fibre is "the optical fibre cables" but there are other uses as well.. It can be use as censors. It can also be used to transmit power using 'Photo voltiac cell'. It is used in most HD-televisions as digital audio optical connection. It can be used as… Read More
Less expensive - Several miles of optical cable can be made cheaper than equivalent lengths of copper wire. This saves your provider (cable TV, Internet) and you money. Thinner - Optical fibers can be drawn to smaller diameters than copper wire. Higher carrying capacity - Because optical fibers are thinner than copper wires, more fibers can be bundled into a given-diameter cable than copper wires. This allows more phone lines to go over the same… Read More
Power Cables: These are the cables that run from your PSU (Power Supply Unit) and attach to various devices in your computer, including but not limited to: the Motherboard, Hard Drive(s), Optical (CD/DVD/Blu-Ray) Drive(s), Fans, etc SATA (Serial ATA) Cables: This cable attaches to either an Optical Drive, Hard Drive, or a SATA External Port to provide a connection between the device and the motherboard and provides for the transfer of information. IDE/ATA Cables: The… Read More