Mid-Infrared Photonics and Nonlinear Optics in Silicon
Dr. Will Green , Research Staff Member at the IBM Thomas J. Watson Research Center
| When: | Feb 24, 2012 | 3:00 pm - 4:00 pm |
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| Where: | MDG-125 |
Silicon nanophotonic waveguides can be engineered to strengthen nonlinear optical interactions by up to 10 to the fifth power times those found in silica optical fibers. Recently, our research has begun applying these strong nonlinear effects to extend the silicon photonic integrated circuit platform’s functionality toward applications in the mid-infrared spectral region, including environmental monitoring, medical diagnostics, and threat detection. The mid-infrared is in fact the ideal spectral band for highly nonlinear silicon nanophotonic waveguides, as parasitic nonlinear loss from two-photon absorption decreases dramatically at wavelengths near and beyond 2.2 mu m. This talk will explore our recent utilization of the silicon platform to develop a number of ultra-compact mid-infrared devices, including optical amplifiers, parametric oscillators, and supercontinuum sources.
| Speaker Biography: | Dr. Will Green is a Research Staff Member at the IBM Thomas J. Watson Research Center. His research activities encompass the design of devices and integrated systems for terabit-per-second-class silicon nanophotonic optical interconnects in high-performance computing. In addition, Dr. Green is engaged in exploratory work aimed at extending the silicon photonic integrated circuit platform to the generation and processing of mid-infrared optical signals. Dr. Green received the Ph.D. degree in Electrical Engineering from the California Institute of Technology in 2005. He is a member of the IEEE Photonics Society and the OSA. |
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| Host: | Marko Loncar |
| Contact: |
Kathleen LaFrance
kath@seas.harvard.edu |
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