WELCOME HIGH SPEED SMART PIXEL ARRAYS Guided by

WELCOME

HIGH SPEED SMART PIXEL ARRAYS Guided by, Mr. RANJITH. C & Ms. KAVYA. K. M Presenting by, SHAHID. C ROLL NO: 63 REG. NO: CTAHEEC 130

POINTS OF DISCUSSION • • • LITERATURE SURVEY INTRODUCTION BLOCK DIAGRAM SMART PIXEL ARRAY COMPONENTS MODULATOR PROCESSING ELEMENT (PE) ARRAY PHOTO RECEIVER APPLICATIONS CONCLUSIONS FUTURE DIRECTIONS

LITERATURE SURVEY • • • High Speed Communication High Bandwidth Less Interference Less Weight Less Power

INTRODUCTION • Optoelectronic Integrated Circuits (OEICs) • Interconnections in Digital Systems §Backplane Communications §Board-to-Board Communications

SMART PIXEL ARRAY

BLOCK DIAGRAM

SMART PIXEL ARRAY COMPONENTS • Modulator § Multiple-quantum-well (MQW) modulators § Vertical-Cavity Surface-Emitting Lasers(VCSELs) • Processing Element (PE) Array • Photo Receiver Array

MODULATOR Vertical Cavity Surface Emitting Laser (VCSEL) § § Accurate wavelength control Improved reliability Reduced operating current Narrow circular output beam

PROCESSING ELEMENT (PE) ARRAY • • • It is 1 -bit wide processor An arithmetic logic unit A full adder A 32 -bit shift-register 6 static registers

PHOTO RECEIVER ARRAY • Photodiode • current mirror amplifier • Two voltage comparators

SMART PIXEL ARRAY MODULE

APPLICATIONS • Telecommunication-data communication switching networks (e. g. , ATM switches) • Fine-grained parallel computers.

CONCLUSIONS • Data retrieval rates could improve • Parallel error detection and correction

FUTURE DIRECTIONS • More compact packaging • Scale the SPAs to larger array dimensions.

BIBLIOGRAPHY • ‘Progress and prospects of long wavelength VCSELs’ Connie J. Chang-Hasnain , University of California, IEEE Optical Communication • www. tipmagazine. com/tip/INPHFA/vol-5/iss-3/p 9. pdf

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