What is rare earth doped?
Rare-earth doped fiber is an optical fiber in which ions of a rare-earth element, such as neodymium, Erbium or holmium, have been incorporated into the glass core matrix, yielding high absorption with low loss in the visible and near-infrared spectral regions.
What is a doped nanoparticles?
Doping is a widely used method for the modification of nanoparticles to enhance their electrical, optical and biological activities. It has been set up from some previous studies that doping may increase the antimicrobial effect (Rekha et al., 2010).
What is the rare earth doped fibers amplifiers?
3 Doped Fiber Amplifiers. Rare earth doped fibers can be used as amplified sources when they are pumped with a laser having a high powered, continuous output at an optical frequency slightly higher than that of the desired fiber output. The most common doping agents are erbium, neodymium, and ytterbium.
Which one is also known as lump Raman amplifier?
8. _________ is also known as lump Raman amplifiers. Explanation: Discrete Raman Amplifiers are lumped elements. This lumped element is to be inserted in transmission line to provide gain.
What is nanoparticle chemistry?
A nanoparticle is a small particle that ranges between 1 to 100 nanometres in size. Undetectable by the human eye, nanoparticles can exhibit significantly different physical and chemical properties to their larger material counterparts. Most nanoparticles are made up of only a few hundred atoms.
Is 850 nm multimode or singlemode?
Multimode fiber is designed to operate at 850 and 1300 nm, while singlemode fiber is optimized for 1310 and 1550 nm.
Which one is also known as lump Raman amplifiers?
What Cannot be used for wideband amplification?
3. ________________ cannot be used for wideband amplification. Explanation: Brillouin fiber amplifiers provide a very narrow spectral bandwidth. These bandwidth can be around 50 MHz, hence cannot be employed for wideband amplification.
What technology does optical Ethernet use?
Explanation: Optical Ethernet is the fourth generation of the Ethernet family. The earlier generations include X. 25, Frame Relay and ATM. Unlike these technologies, optical Ethernet uses IP-based technology.
How big is a Nanometre?
Just how small is “nano?” In the International System of Units, the prefix “nano” means one-billionth, or 10-9; therefore one nanometer is one-billionth of a meter.
What is Nano electricity?
Nanocrystal Electricity is the radiating of power through nanocrystals. More simply, it uses nanocrystals, which are crystals that can be as small as one-millionth the size of an ant, to amplify a frequency that is capable of powering a device.