Modeling Free Space Optical Systems
Modeling Free Space Optical Systems
Modeling Free Space Optical Systems
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BER<br />
1.00E-04<br />
1.00E-05<br />
1.00E-06<br />
1.00E-07<br />
1.00E-08<br />
BER = 10 -9 120ps<br />
BER <strong>Modeling</strong><br />
1.00E-09<br />
-400 -300 -200 -100 0 100 200 300 400<br />
Offset from reference Decision Sample Time (ps)<br />
BER<br />
1.00E-03<br />
1.00E-06<br />
1.00E-09<br />
1.00E-12<br />
1.00E-15<br />
1.00E-18<br />
1.5 2.5 3.5 4.5 5.5 6.5<br />
Recieved Photocurrent (uA)<br />
Poptic<br />
C<br />
BER=10 -9<br />
VDD<br />
A<br />
Rf<br />
5.2μA<br />
Vout<br />
Krishnamoorthy, A.V., Woodward, T.K., Goossen, et. al<br />
“Operation of a Single-Ended 550Mbit/s, 41fJ, Hybrid<br />
CMOS/MQW Receiver-transmitter”, Electronic Letters,<br />
April 1996.<br />
System 1: 3D OESP / FFT Demo<br />
Prototype<br />
Digital Logic VCSEL / Detector Array<br />
Sapphire Substrate<br />
Lenslet Array<br />
500μm<br />
13mm<br />
Silicon Microbench<br />
7mm<br />
Electrical Drivers / Amplifiers<br />
7cm<br />
20mm<br />
7mm 13mm<br />
Digital Logic<br />
μBench Assembly<br />
Function: FFT<br />
512x512<br />
32 bits complex<br />
Throughput < 1 msec<br />
Power < 340 W<br />
Volume < 35 cm3 Function: FFT<br />
512x512<br />
32 bits complex<br />
Throughput < 1 msec<br />
Power < 340 W<br />
Volume < 35 cm3
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