Development Of On-Chip High Performance Optical Components Based On Hybrid Material System Of Chalcogenide Glass And Conventional Optical Materials
Abstract
With continuously increasing needs for mid-IR optical systems, chalcogenide glass has beenconsidered one of the most promising material to develop essential components in mid-IRrange due to its excellent optical properties such as low material loss and high nonlinearity.The main obstacle, up to now, for the implementation of high performance on-chipchalcogenide components is lack of proper tools (or fabrication techniques) to define microstructuresof smooth side walls which are essential to suppress surface scattering that is themost significant source of optical loss. Therefore, we propose novel approach to develop newtype of chalcogenide glass devices to avoid the current fabrication limit. The suggested opticalcomponents consist of two different materials, conventional optical materials (such as Si, SiO2,and Si3N4) and chalcogenide glass. The main benefit of this hybrid material system comes fromwell-developed fabrication techniques of conventional optical materials which guaranteeextremely smooth structure surface and unique functionalities of chalcogenide glass such aslow optical loss in mid-IR range and high nonlinearity even in near-IR range. As keycomponents, high-Q resonators and low loss waveguide will be developed with this hybridmaterial system, corresponding to the performance metric of 5x106 Q and 0.05 dB/cm opticalloss, respectively, which is more than 10 times superior value than that of the recently reportedbest records. To achieve this goal, the details in fabrication process and component design willbe optimized as well as collaboration with experts in chalcogenide glass research. In the finalstep of the project, highly nonlinear waveguides, namely on-chip version of HNLF will bedemonstrated for the first time. It is expected that the knowledge and techniques attained duringthis project can be applied for developing future mid-IR devices monolithically integrated ona silicon chip.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 05, 2016
- Source ID
- FA23861614139
Entities
People
- Hansuek Lee
Organizations
- Air Force Office of Scientific Research
- KAIST
- United States Air Force