free space optics the bright future of wireless communications
Post on 19-Dec-2015
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TRANSCRIPT
What is FSO?
Line of sight free space (wireless) transmission technology
Utilizes light (laser) to transfer data
Delivers high speed secure connection
Offers economical solution (low power consumption, no wide radiation)
Optical Transmission
TX
RX
Optical fibre
Optical fibre
Lasertransmitter
ReceiverDiode
TX optics
RX Optics
FibreOpticTransceiver
Fibre Optic
Optical Transmission
Free SpaceTX
RX
FreeSpaceOptics
Transmitter
Receiver
Lasertransmitter
ReceiverDiode
TX optics
RX Optics
Why Free Space Optics?
License-free operation
High bandwidth
High data security
No interference issues
Rapid deployment/re-deployment
Excellent price/performance (low cost per bit)
Eye Safety
Human eye
7 m
m
Optical apertures/surfaces
TX optics: 1962 mm2Footprint: 196250 mm2Human eye: 38 mm2
NOHD Values
1.8 m – 85 m
Application Summary
Microwave-Frequency license-Speed
Fiber Optic Cable-Expensive-Long installation time
Branch Office
Headquarters
Security?
Microwave-Frequency license-Speed
Laser Link-High Speed-No frequency license-Secure-Rapid deployment
Typical Users
GSM/UMTS
Corporate telephone
Telco networks
Corporate LAN
Internet
Temporary Applications
Backup links
Corporate Networks - Telephone
Localsubscribers
TelephoneExchange
TelephoneExchange
Localsubscribers
2 Mbps (E1)
Carriers – Last Mile Access
Fat pipe to corporate users
Support residential areas
Set up alternative routes
Expand bandwidth
Mobile Operators – BTS Access
Base Transmitter Station (BTS)
Base Station Controller (BSC)
2 Mbps – 34 Mbps (E1-E3)
ISP’s – Metro Area Networks
Point of Presence (POP)
ResidentialResidential
ResidentialCorporateUsers
Temporary Installations
Disaster recoverySatisfy prompt or temporary needsOffice leasing (corporate)Rapid network expansion (Telco)
Backup Links
To provide 24 hours a day availability
High speed secure connection
Alternative data path
Customer Base
Carriers and Telco’sLandline and wireless servicesLast mile access
Internet Service ProvidersCompanies and corporations of all sizeCampusesHospitalsFactoriesOffices
Market Expectations
Chart 1: FSO Market Projected Growth ($ mn)
0
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
1999E 2000E 2001E 2002E 2003E 2004E 2005E
Merrill Lynch: FreeSpace Optics 15 May 2001