•Micro Electro Mechanical Systems•Micro Electro Mechanical Systems – this means small moving...
Transcript of •Micro Electro Mechanical Systems•Micro Electro Mechanical Systems – this means small moving...
• Micro Electro Mechanical Systems– this means small moving devices
• It’s a technology, not an application– MEMS devices can be found in many places
• TI has chosen to concentrate on small moving silicon mirrors
• Analog 3D MEMS– 2 axis, gimbaled mirror– Single mirror for precision pointing– Electro-magnetic actuation
• Analog 2D MEMS– 1 axis, scanning mirror– Mirror designed for scanning applications– Electro-magnetic actuation
• Digital 2D MEMS– “Digital” operation, on/off– >900,000 mirrors on a single die– Electro-static actuation
Analog MEMS O ptical Wireless-Fr e e S p a c e O ptics-L A N-Cons u m er A p plic a tions
O ptical Networking-Photonic S witch-F a ult T ol er a n c e-O A D M-V O A
Other Markets-B ar C o d e S c a n n ing-Displ ay-S e c urity-Hologr a p hic M e m ory
– Comparison metric: $/Gb-km
– Distinct Segment– Shares some of the
attributes of long-haul, some of access
– Meshy traffic patterns
– Typically hubbed traffic
– Focus on cost, cost, cost
Metro Access OADM
OADM
OADM
OADM
Long Haul
Tx Rx
XC
OADM
XC
Regional
• Movable mirror can accomplish a NxN switch
• Mirrors can be positioned and moved to create an optical add/drop multiplexer
• Mirrors in a 3-D architecture can deflect light in a greater number of directions than a 2-D architecture.
• Fiber like capability -without the fiber
• Delivers dedicated, bi-directional voice, video, and data
• No FCC Certification or Licenses
• Rapid, Flexible Installation
A N A L O G (3D) MEMS
• T w o A xis, gimb al e d mirror
• 1 mirror, 9 m m 2 in ar e a
• El ectro-m a g n e tic a ctu a tion
• Lo w Lo ss (>97% r efl e ctivity, > 4 0 m r a dius curv a tur e)
• High Pr e cision (<5 m s s witch tim e, 1% A ccura c y)
• High R eli ability
• Co st E f f e ctiv e solution
• S ervic e s Indoor & O utdoor W ir el e s s O ptical, a n d O ptic al N e t w ork m ark e ts.
• 1 TMS32OVC5410 DSP controlling up to 4 Mirrors
• Interfaces: RS232, High-speed Serial, and JTAG
• 16 bit Auxiliary ADC’s• PC-based GUI Interface• Onboard Flash Memory &
FPGA• Code Composer Studio
Development Environment• Command/Closed Loop
Control Software
• Wireless 100 Mbps point-to-point Ethernet
• Fiber-like capability -- without the fiber
• Delivers dedicated, bi-directional voice, video, and data
• Worldwide license-free operation
• Rapid, flexible, low cost installation
• Managed network capability
• Sanyo - Gunma– Able to supply optical modules & optical
designs.• Everest
– Provides SNMP software to enhance Kelly reference design.
• Analog MEMS mirrors have a number of other applications that the OWS has started to address– Bar Code Scanning– Optical storage– General cable replacement
• Home theater systems• Remote camera security
– Laser light show– Finger/eye printing
• Low Power• Low Voltage• Substantially reduced size• Quick set-up & alignment• Fast wind-up time• Low acoustic & electrical noise• Mirror surface optimized for laser reflection• Excellent mirror flatness• High MTBF
T ALP2000A N A L O G (2D) MEMS
• O n e A xis mirror
• 1 mirror, ~12 m m 2 in ar e a
• El e ctro-m a g n e tic a ctu a tion
• 2000 H z r e s on a n c e fr e q u e n c y
• Lo w el e ctrical a n d a u dible nois e
• High R eli ability
• Co st E f f e ctiv e solution
• Production 4 Q 0 2