1. GYAN VIHAR School of Engineering & Technology A Seminar On OPTICAL COMPUTERS Submitted to: - Submitted by: Mr. Naveen Hemrajani Sudhanshu Shekhar Head of the Department B.Tech. IV Year, Computer Science Engineering (VIII Semester)

2. COMPUTER OF 2010 OPTICAL COMPUTER

4. OPTICAL COMPUTER

7. VCSEL

8. SLM (Spatial Light Modulator)

9. WDM (Wide Division Multiplexer)

10. OPTICAL FIBRE

11. An Optical Computer Powered by Germanium Laser

12. GERMANIUM LASER

13. Concept of Picosecond BY NASA Computers used to work in millisecond(1,000ths), then moved up to microseconds(millionths),and now are approaching nanoseconds(billionths) for logic operations and PICOSECOND(TRILLIONTHS) for the switches and gates in the chip.

14. ADVANTAGES . . . . .

15. Optical Computing using a coherent source is simple to compute and understand, but it has many drawbacks like any imperfections or dust on the Optical Components will create unwanted interference pattern due to scattering effects. DRAWBACKS

18. QUERY

19. THANKS …. FOR UR PATIENCE