Registered
OPTICAL COUPLER HAVING SELF-FOCUSING REGION AND ARRYED-WAVEGUIDE GRATING STRUCTURE INCLUDING THE SAME
- Inventors
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Park Jaegyu, Kim Gyungock, Jiho Joo, Park Hyundai, Kwack Myungjoon
- Application No.
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14329878 (2014.07.11)
- Publication No.
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20150078708 (2015.03.19)
- Registration No.
- 9164238 (2015.10.20)
- Country
- UNITED STATES
- Project Code
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13VB1800, Silicon Nanophotonics-based next-generation computer chip,
Kim Gyungock
- Abstract
- Provided are an optical coupler and an arrayed-waveguide grating structure including the same. The coupler includes a lower clad layer, a core comprising a slab waveguide region disposed on one side of the lower clad layer and a ridge waveguide region disposed on the other side of the lower clad layer, and an upper clad disposed on the core, wherein the ridge waveguide region comprises a self-focusing region configured to focus an optical signal provided form the slab waveguide region and thus to prevent scattering of the optical signal.
- KSP Keywords
- Clad layer, Grating structure, Optical signal, Ridge waveguides(RWs), Self-focusing, Slab waveguide, Waveguide grating, arrayed waveguide grating(AWG), optical coupler