1 / 14

Team Desu

Basudde Kajubi Jason Talbot Ekene Uzoma Serge Zhilyaev. Team Desu. Optical Modulator. Background and Motivation. Evolution in laser technology - The available bandwidth has increased. - Output wavelength can be tuned New shutter technology needed

ajay
Download Presentation

Team Desu

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Basudde Kajubi Jason Talbot Ekene Uzoma Serge Zhilyaev Team Desu Optical Modulator

  2. Background and Motivation • Evolution in laser technology - The available bandwidth has increased. - Output wavelength can be tuned • New shutter technology needed - System to block range of wavelengths. • Infrared modulator - IR modulator less developed • High spec in open transmission

  3. Background and Motivation • Modulator using oxide shutter - Vanadium oxide is implemented - Thermochromic property • Open/Closed mode operations - Open mode transmittance is high - Closed mode reflectance occurs

  4. The Design • Deposit oxide on glass panel by sol-gel method • Design a micro heater attached to glass • Add photodetector for display • Implement testing system for shutter characterization

  5. Melt VO2 at 600C Pour it in water Spin it 3-5 times The higher the speed, the lower the thickness Fire film at 500C for about 2 hours 15g per 500ml of distilled water Sol Gel Process

  6. Derivation of Design Algorithm • Goal? • Power Calculation • Energy (heat calculation) • Relationship between heat and power • Resistance, Resistivity, length, Area? • Current Density requirements

  7. Actual Design • Reason For Design • Restrictions on Design • Possible Improvements

  8. Photodetector and LED • 3.4um LED • Why PbSe? • Are they compatible?

  9. Deliverables of the Design Project • Produce optical shutter designed for 3-5um • Characterize the shutter for optical performance and switching time. • Evaluation of measurements would give guidelines development of the shutter in a real system. • Laser protection should have 50-70 % open transmission and less than 1 % closed transmission • The switching time from open to closed mode on the order of µs-ms.

  10. Design Alternative • Implementing modulator as real system • Can be used as data storage • Window coating application • Military applications

  11. MDR specifications • Make experimental thin films by depositing VO2 using the sol gel method • Configure a method for making heating appliance • Derive values and specifications for heating process • Experiment on the laser and photo detector settings • Look into making the project more efficient • Conduct tests on shutter characterization

  12. QUESTIONS AND COMMENTS

More Related