optical computing was a hot research area in 1980s but the work tapered off due to materials...
DESCRIPTION
Optical Computer An optical computer (also called a photonic computer) is a device that uses the PHOTONS in visible light or infrared beams, rather than electric current to perform digital computations.TRANSCRIPT
Optical Computing
Optical Computingwas a hot research area in 1980’s but the work tapered off due to materials limitations.
uses light, instead of electric power, for performing computations.
Optical Computer
An optical computer (also called a photonic computer) is a device that uses the PHOTONS in visible light or infrared beams, rather than electric current to perform digital computations.
Optical ComputerBright flashes of laser light can be
sent hundreds of miles along fine strands of specially made glass or plastic called OPTICAL FIBERS.
Instead of transistors, such a computer will have TRANSPHASORS
Optical ComputerOptic Fiber cables made of glass or
plastic
Glass optic fiber
Plastic optic fiber
SOME KEY OPTICAL COMPONENTS FOR COMPUTING VCSEL (VERTICAL CAVITY SURFACE
EMITTING LASER)-VCSEL(pronounced ‘vixel’ )is a semiconductor
vertical cavity surface emitting laser diode that emits light in a cylindrical beam vertically from the surface of a fabricated wafer.
SOME KEY OPTICAL COMPONENTS FOR COMPUTING SMART PIXEL TECHNOLOGY
- is a relatively new approach to integrating electronic circuitry and optoelectronic devices in a common framework.
- the electronic circuitry provides complex functionality and programmability.
SOME KEY OPTICAL COMPONENTS FOR COMPUTING
WDM (WAVELENGTH DIVISION MULTIPLEXING)
- is a method of sending many different wavelengths down the same optical fiber.
- can transmit up to 32 wavelengths through a single fiber, but cannot meet the bandwidth requirements of the present day communication systems.
SOME KEY OPTICAL COMPONENTS FOR COMPUTING SLM (SPATIAL LIGHT MODULATORS)
- play an important role in several technical areas where the control of light on a pixel-by-pixel basis is a key element, such as optical processing and displays.
For display purposes the desire is to have as many pixels as possible in as small and cheap a device as possible.
Advantages
Higher Parallelism
Less Loss in Communicatio
nMore
Flexibility in Layout
Less Consumptio
n
Less NoiseLess Heat is Released
Higher Performanc
e
Less Wear
DisadvantagesProblems of
exact manufacturin
g
Incompatibi-lity
New expensive high-tech
factories have to be built
Optical components
and their production is still expensive
Optical components
are not miniaturized enough yet