1 / 11

Emerging Opportunities: Nano-Photonics & Information Technology

Emerging Opportunities: Nano-Photonics & Information Technology. Connie Chang-Hasnain EECS University of California, Berkeley. 10 7. . . . . 10 6. .  WHAT’S NEXT ??  WDM + Optical Amplifiers  Optical Amplifiers  Coherent Detection  1.5 m Single-Frequency Laser

danika
Download Presentation

Emerging Opportunities: Nano-Photonics & Information Technology

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. Emerging Opportunities: Nano-Photonics & Information Technology Connie Chang-Hasnain EECS University of California, Berkeley

  2. Chang-Hasnain, UCB

  3. 107     106  WHAT’S NEXT??  WDM + Optical Amplifiers Optical Amplifiers Coherent Detection 1.5m Single-Frequency Laser 1.3m SM Fiber 0.8m MM Fiber    105  104  103   Bit Rate -Distance ( Gb/s km)      102      101     1 1970 1975 1980 1985 1990 1995 2000 2005 Year Advances in Optical Communications Coax, 274 Mb/s at 1km repeater spacing • 107 Increase in Bit rate-Distance Product in 25 years Source: Tingye Li and Herwig Kogelnik Chang-Hasnain, UCB

  4. Opportunities in Optoelectronics • Active Devices  Faster, Better, Smaller, New Functions • Examples: lasers, detectors, modulators, amplifiers, freq. mixer • New functions: wavelength tuning, beam steering, UV and FIR • Passive Devices  Better, Smaller, New Functions • Examples: Wavelength multiplexers, resonators, filters, couplers • New functions: thin film non-reciprocal devices • Leverage the Coherence Property • All-optical buffer and random access memory (RAM) • Optical signal processing • Integration! • Monolithic • Heterogeneous Chang-Hasnain, UCB

  5. Opportunities in Optoelectronics Nanoscale Material Synthesis • Active Devices  Faster, Better, Smaller, New Functions • Examples: lasers, detectors, modulators, amplifiers, freq. mixer • New functions: wavelength tuning, beam steering, UV and FIR • Passive Devices  Better, Smaller, New Functions • Examples: Wavelength multiplexers, resonators, filters, couplers • New functions: thin film non-reciprocal devices • Leverage the Coherence Property • All-optical buffer and random access memory (RAM) • Optical signal processing • Integration! • Monolithic • Heterogeneous Nanoscale Processing Integrated Optoelectronics Chang-Hasnain, UCB

  6. Quantum Wire Quantum Dot Quantum Well Bulk Tailorable Active Materials • Greatly Enhanced or Suppressed • Optical Gain • Spontaneous Emission • Optical Nonlinearities Yang, Berkeley Density of States Energy (hn) Chang-Hasnain, UCB

  7. Chang-Hasnain, Berkeley Dapkus, USC Weber, Berkeley Active Material Synthesis • Major Challenges • Uniformity Control • Size Control • Placement Control • Defect Reduction Chang-Hasnain, UCB

  8. Zuzuki, Berkeley Compact Integrated Optics: Photonic Crystals • Making Passive Optics 1000 Times Smaller Chang-Hasnain, UCB

  9. Signal slow down pump Multiple stacked QD Slow Light and Frozen Light • Slow light demonstrated in atomic vapor at low temperature, 1999 • We proposed all-optical buffers in ‘00. • DARPA funded program in 2002 • New BAA on Intelligent Optical Network coming out in March. Chang-Hasnain, Berkeley P. C. Ku, et.al. Electron. Lett. 2002 Chang-Hasnain, UCB

  10. Bio-Photonics • DARPA Centers • U of Illinois Urbana-Champaign, Berkeley, Colorado State, Columbia, • Cornell, Harvard Chang-Hasnain, UCB

  11. InGaN LEDs on Si 200 mm Integration • Monolithic • Princeton University • “If you can draw it, we can build it.” • Vertical coupling of light via lateral tapers. • Single growth step. • Heterogeneous • UC Berkeley • Paste-and-Cut Approach • Ion Cut • Laser Lift-off Cheung and Sands, Berkeley Chang-Hasnain, UCB

More Related