1. Photonic devices for optical processing, communication and sensing Shlomo Ruschin Tel-Aviv University

2. Tubular dye-polymer waveguides embedded in silicon

3. Air Si SiO 2 Figure 6.- 5 Result of dry oxidation of the etched silicon rounded holes: a.) before oxidation; b.) after oxidation. a.)b.)

4. Porous Silicon Optical Sensors Tanya Hutter and Shlomo Ruschin Tel-Aviv University Integrated Optics Group Tel-Aviv University

5. Optical remote sensor network

6. NH3NH3 NH3NH3 NH 3 NH3NH3 NH3NH3 Ammonia storage warehouse Motivation (1) porous silicon sensors ADVANTAGES: Cheap Small Remote Passive (can be used in flammable environment) Light source and receiving fiber PSi Sensors ALARM !

7. Multi-Sensing Principle Sensor array concept. Each section is made of porous silicon with a different functionality. White light is collimated to illuminate the entire sample. The reflected light from all the sections is measured simultaneously in a non-imaging configuration using a single detector. The obtained spectrum consists of many overlapping interference spectra each reflected from a different sensor section.

8. Multi-Sensing Principle Porous silicon surface Gas in Gas out

9. METHODS FOR INCREASING RELIABILITY IN GAS DETECTION BASED ON INDCATOR GRADIENT IN A SENSOR ARRAY

10. Device and method for creating sub-wavelength sized light spots with increased depth of field

12. OPTICAL DIGITAL-TO- ANALOG CONVERSION USING MULTI-ELECTRODE MACH-ZEHNDER MODULATOR

13. Full-Dynamic Range Optical DAC Digital-To-Digital Conversion Electrodes lengths is NOT interrelated by factor of 2 Number of electrodes M>N

14. Theoretical Performance 4 bit DAC (Cont.) N=4, M=4 Duplicate Levels

15. Photonic D/A converter packaged D/As ready for measurements Lithium Niobate chip with several photonic D/As Y-coupler #2D/A #9 with no voltage applied

16. Conceptual Coherent Optical OFDM Transmitter ME-MZM IDFTDDC X0X1X0X1 X NC-2 X NC-1.... P/S Laser DiDi B 1i B 2i Fiber DSPOptics Our proposal

17. Critical sensitivity effect in an interferometer sensor Ronen Levy, Shlomo Ruschin*, and Damian Goldring

18. Critical sensitivity effect in an interferometer sensor Ronen Levy, Shlomo Ruschin*, and Damian Goldring Sensor output power for the scanned wavelength range without illumination (Blue, solid line) and with illumination (Green, dashed line). Splitting effect

19. Sensors based on frequency determination in active optical waveguides

20. Concept Sensor Pump Architecture & detection scheme Suitable for both remote sensing & biomedical device

21. Nd-doped tapered rib waveguide laser- schematic view, not drawn to scale for clarity Monolithic rare-earth doped sol-gel tapered rib waveguide laser

22. Emission spectra of the laser device for different input pump powers. Output lasing power as a function of input pump power for different pump wavelengths

25. Patents by Shlomo Ruschin (Inventor) Special FeaturesApplicationsContentIssue/Filin g Date InventorsPatent nameStatusPatent Number Very strong claim granted. Basically most optical channel running beneath a Silicon chip are covered. Experimentally demonstrated Fast data buses for interconnects in micro-processors Optical waveguides embedded in Silicon, structure and manufacturing are disclosed. Jan 26, 2010 S. Stepanov S. Ruschin, Embedded channels, embedded waveguides and methods of manufacturing Granted7653281 Based on a novel effect. Unlimited theoretical sensitivity. Experimentally demonstrated Sensing of : motion, environment pollution, water, vibrations, bio- sensing General method of improving drastically the sensitivity of interferometric sensors Jul 23, 2009 Ronen Levy, Shlomo Ruschin ENHANCED SENSITIVITY INTERFEROMETRIC SENSORS Application submitted 13/055,464 Increases capacity of optical fiber links. Can be extended to high- constellation QAM signal modulation. Signal processing at ultra-high rates. Transmission of fast optical signals without distortion Integrated Optic device for fast D/A conversion. Solves a basic problem of non- linearity between input voltage and optical transmission. Oct 25, 2011 Y. Ehrlichman O. Amrani, S. Ruschin LINEARIZED OPTICAL DIGITAL- TO-ANALOG MODULATOR Granted 8044835 Allows the modulation anywhere in the network. Allows implementation without Polarization maintaining fibers. Experimentally demonstrated Fiber-optic communication networks Device for modulating light into an optical fiber. The performance is basically independent from the polarization state of the light Mar 14, 2006 S. Ruschin, A. Kaplan Polarization independent electro- optical device for modulation of light Granted7013053

26. Very strong claim granted. May cover many devices based on near- field optics High density data storage. High resolution microscopy Device and method for creating sub-wavelength sized light spots with increased depth of field Apr 22, 2003 S. RuschinBeam generation method and system Granted6552864 Provides solution for easy connecting and packaging polymer waveguides Fiber-optic communication, passive and active devices, sensing Substrate-waveguide arrangement, allowing combination of glass and polymer waveguide Sep 23, 2003 Shlomo Ruschin, Tali Hurvits Polymer on substrate waveguide structure and corresponding production method Granted6625366 Remote sensing by light or laser beam. Simultaneous sensing of several pollutants in air or water Applied for in US, Chine, Europe Environmental monitoring. Arrangement for simultaneous sensing of a plurality of substances or environmental conditions Sep 15, 2011 Shlomo RUSCHIN, Tanya HUTTER DEVICE AND METHOD FOR OPTICAL SENSING OF SUBSTANCES OR ENVIRONMENTAL CONDITIONS Applied for13/233158 High sensitivity. Incorporates the light source (laser). Experimentally demonstrated. Chemical, environmental and biological sensing. Chemo and biosensor based on a light emitting waveguide and on specific binding Nov 4, 2008 A. Peled, M. Nathan, S. Ruschin, T. Zohar Planar-resonator based optical chemo- and biosensor Granted7447391 High sensitivity. Incorporates the light source (laser). Experimentally demonstrated in lab Chemical, environmental and biological sensing. Chemo and biosensor based on a light emitting waveguide and on specific binding. Incorporates waveguide interferometer Mar 12, 2009 A. Peled, M. Nathan, S. Ruschin, Y. Betzalel, J. Rishpon LIGHT-EMITTING INTRA-CAVITY INTERFEROMETRI C SENSORS Applied for12/402,539 Silicon-based laser or amplifier source. Effect observed in lab but no fully understood Fiber optic communication, Inter-chip optical links Amplification of light in a waveguide made of an indirect-gap semiconductor, incl. Silicon. Based on optical pumping Feb 3, 2009 S. Ruschin, S. Stepanov Apparatus and method for optical amplification in indirect-gap semiconductors Granted7486437