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CONTENTS
INTRODUCTION
FEATURES
TODAYS CHALLENGES
LIGHT PEAK VS USB 3.0
COMPONENT OVERVIEW
VCSEL
OPTICAL MODULE
CONTROLLER CHIP
ADVANTAGES
CONCLUSION
REFERENCES
INTRODUCTION
Light peak is the code name for the high speed optical cable technology
It connects electronic devices to each other
Delivers bandwidth of 10Gb/s with a potential to scale to 100Gb/s.
Features
Provide a standard low cost optical based interconnect
- support for key existing protocols(USB, HDMI, DP, PCIe , etc)
- scalable bandwidth, cost, power to support broad base for
10+years
- support wide range of devices(handhelds , laptop , pc’s)
Common optical i/o architecture for the next decade and more
- single flexible cable that can carry any platform i/o
- economies of scale from a single optical solution
Today’s Challenges
Electrical i/o nearing practical limits
- speed & distance limited
Devices getting smaller,
thinner, and lighter
Too many different
connectors and cables
LIGHT PEAK VS USB 3.0
4 Optical Fibre Cable
Speed-10 Gb/sec
Universal
Max Cable Length-100m
9 Copper Wires
Speed-3 Gb/sec
Only Usb Protocol
Max Cable Length-9m
MAJOR COMPONENTS
OPTICAL MODULE
VCSEL
CONTROLLER CHIP
OPTICAL MODULE
Two way chip
Consists of photo detectors and miniature lasers(VCSEL)
Does conversion from Light to Electricity Vice-Versa
OPTICAL MODULE
VCSEL
CONTROLLER CHIP
Manages multiple protocol
It Identifies which protocol is to be transmitted
API helps to determine the different protocols
API places the FIS packets in memory.
Controller chip access the FIS packets from memory
sends these Packets to destination over Optical link
Future Client Usage Models
Fast external storage
SSD or HDD arrays transferring at 10Gbs and faster
Advanced docking
High-performance docks, With a single cable, connect to dock with:
PC-to-PC high-speed connection
Transfer files, PC migration, etc
Simplified home connectivity
Connect multiple PCs and portable CE devices
ADVANTAGES
10 Gbit/s over optical cable (up to 100 metres in length)
Connect to multiple devices at the same time
Multiple protocols
Bi-Directional transfer
Quality of service implementation
Hot Pluggable
Industry Perspective
“Sony is excited about the potential for Light Peak technology that has been developing, and believe it could enable a new generation of high-speed device connectivity.”
“Nokia believes that Light Peak technology enables new wired connectivity solutions for Mobile Computers and Smart phones, and looks forward to working to create a global standard based on Light Peak technology.”
CONCLUSION
“ LIGHT PEAK is an high speed optical i/o architecture for the next decade and beyond ”
References
intelgo/lightpeak
en.wikipediawiki/Light_Peak
techresearch.intel.com
blogs.intelresearch
Intel Technology Journal
……
QUESTIONS
?
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Light Peak
Light Peak is the code name for a new high-speed optical cable technology designed to connect electronic devices to each other. Light Peak delivers high bandwidth starting at 10Gb/s with the potential ability to scale to 100Gb/s over the next decade. At 10Gb/s, we can transfer a full-length Blu-Ray movie in less than 30 seconds. Light peak allows for smaller connectors and longer, thinner, and more flexible cables than currently possible. Light Peak also has the ability to run multiple protocols simultaneously over a single cable, enabling the technology to connect devices such as peripherals, displays, disk drives, docking stations, and more.
Existing electrical cable technology in mainstream computing devices is approaching practical limits for speed and length, due to electro-magnetic interference (EMI) and other issues. However, optical technology, used extensively in data centres and telecom communications, does not have these limitations since it transmits data using light instead of electricity. Light Peak brings this optical technology to mainstream computing and consumer electronic devices in a cost-effective manner.
Light Peak consists of a controller chip and an optical module that would be included in platforms supporting this technology. The optical module performs the conversion from electricity to light and vice versa, using miniature lasers and photo detectors. Over time, the optical components, designed to be small, easy to manufacture and affordable, are expected to enjoy the economies of scale that other components have in the computing and consumer electronics industries.
Reference : A New Optical Technology-Light Peak (Intel Technology Journal –January 2010)
Jason Ziller, Victor Krutul (Intel Communications Group, Intel Corporation)
Submitted by : Deepakbabu.K
Roll no : 23 ( S7-R )
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please send the working of light peak ,how the conversion takes place and which is the micro controller used ?
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hi
the above posts contain attachments. please see them too
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but not explaining the conversion of electrical data to optical,how it is performed ?
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thank u for uploading ....so use of them.
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Introduction
Lig The light peak technology is a high speed optical cable technology used to connect peripheral devices to the computer via an expansion bus and using the same port. It is developed by the Intel corporation and brought to market by the Apple Inc in its upcoming version of MacBook Pros. It provide a high bandwidth and faster data transfer speed ranging from 10gb/s up to 100gb/s.
Light peak combines PCI Express and DisplayPort into a new serial data interface that can be carried over longer and less costly cables. Multiple devices can be connected simultaneously as it can support multiple protocols. Also it can be used a single universal replacement for all the current bushes.
History of connectivity:
<Type the contentthe conventional computers use buses in order to connect here>
e 1.5 line spacing, Font: verdana normal, font size 10 pts, black only >
Key characteristics:
• peak implements optical technology
• it implements the principle of total internal reflection
• data is transferred through the optical fiber cables
•
• provide multiple connection channel and can connect multiple devices simultaneously using the same port.
• Support bi-directional transfer
• Hot-pluggable
Description:
The light peak technology is comprised of following components:
• An Optical fiber cable
• A controller
• An optical module
• A connector in each device
Optical cable: the data is transferred through the optical fiber cable which is made up of glass and it is plastic coated. It also contains copper wire to power devices which are connected to it. The optical cable is 125nm in diameter and can support data transfer up to 100 mts.
Controller: the controller chip is the main component used in Light Peak. It provides protocol switching capabilities to support multiple protocols over a single cable. It also provide priority based transfer by assigning priorities to different devices and applications used.
Optical module: the optical module convert the electrical signals into the photons which are transferred over the optical cable. The conversion is done using a special VCSEL(vertical cavity surface emitting lasers). The optical module drives two optical ports.
Connector: the connectors are located at end of the optical cable, it allow fast removal and insertion. Light peak uses the smaller ports which are suitable for the laptops.
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give more details about light peak working.....
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