28-07-2012, 11:15 AM
MICROPHOTONICS
MICROPHOTONICS.pptx (Size: 48.69 KB / Downloads: 31)
It is science of directing and controlling microscopic photons of electromagnetic energy on microscopic level.
It offers speed, immunity to interference, increased bandwidth, parallel processing and enhanced data storage.
TOTAL INTERNAL REFLECTION
It is the phenomenon by which the light is reflected back into the optical fibre .
This phenomenon varies for fibres based on the critical angle of the .
PHOTONIC SWITCH
Electronic switches create bottlenecks at the central hubs
Photonic switches can receive and transmit light signals
Photonic switches are accompanied by waveguides.
PHOTONIC TRANSISTOR
It is accomplished with the help of red and blue lasers.
Laser beams are focused on a film composed of metal and plastic layers with a layer of silver oxide.
One of the laser beams regulate the other.
TRANSISTOR LASER
TRANSISTOR LASER Has a quantum well in the base.
Can produce both electric and optical signals e-h recombination take place in a large amount in quantum well which emits light.
This light get reflected by the mirrors at the walls of the quantum well
TRANSISTOR LASER
TRANSISTOR LASER Has a quantum well in the base.
Can produce both electric and optical signals e-h recombination take place in a large amount in quantum well which emits light.
This light get reflected by the mirrors at the walls of the quantum well
HOLOGRAPHY
It is used to collect and store data.
This uses a data beam and a reference beam. Holographic memory devices can store trillions of bytes.
Holographic storage has the potential to replace the magnetic storage
ADVANTAGES
This can increase the speed of processing
This can reduce the size and cost of photonic circuits .
It can lead to new revolutions in all the technical fields
DISADVANTAGES
Undesired slowness of light High expense in manufacturing Lack of advanced technologies
APPLICATIONS
OPTICAL INTERCONNECTIONS
PHOTONIC COMPUTING
THz PHOTONICS
LIGHT FIELD CAMERAS
FEMTOSECOND LASERS
TELEPORTATION
OPTICAL ROUTERS AND SIGNAL PROCESSORS LONG RANGE TELECOMMUNICATION